/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define LOG_TAG "ResourceType"
//#define LOG_NDEBUG 0

#include <ctype.h>
#include <memory.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

#include <algorithm>
#include <limits>
#include <memory>
#include <type_traits>

#include <androidfw/ByteBucketArray.h>
#include <androidfw/ResourceTypes.h>
#include <androidfw/TypeWrappers.h>
#include <utils/Atomic.h>
#include <utils/ByteOrder.h>
#include <utils/Debug.h>
#include <utils/Log.h>
#include <utils/String16.h>
#include <utils/String8.h>

#ifdef __ANDROID__


#endif

#ifndef INT32_MAX
#define INT32_MAX ((int32_t)(2147483647))
#endif

namespace android {

#if defined(_WIN32)
                                                                                                                            #undef  nhtol
#undef  htonl
#define ntohl(x)    ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
#define htonl(x)    ntohl(x)
#define ntohs(x)    ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
#define htons(x)    ntohs(x)
#endif

#define IDMAP_MAGIC             0x504D4449
#define IDMAP_CURRENT_VERSION   0x00000001

#define APP_PACKAGE_ID      0x7f
#define SYS_PACKAGE_ID      0x01

    static const bool kDebugStringPoolNoisy = false;
    static const bool kDebugXMLNoisy = false;
    static const bool kDebugTableNoisy = false;
    static const bool kDebugTableGetEntry = false;
    static const bool kDebugTableSuperNoisy = false;
    static const bool kDebugLoadTableNoisy = false;
    static const bool kDebugLoadTableSuperNoisy = false;
    static const bool kDebugTableTheme = false;
    static const bool kDebugResXMLTree = false;
    static const bool kDebugLibNoisy = false;

// TODO: This code uses 0xFFFFFFFF converted to bag_set* as a sentinel value. This is bad practice.

// Standard C isspace() is only required to look at the low byte of its input, so
// produces incorrect results for UTF-16 characters.  For safety's sake, assume that
// any high-byte UTF-16 code point is not whitespace.
    inline int isspace16(char16_t c) {
        return (c < 0x0080 && isspace(c));
    }

    template<typename T>
    inline static T max(T a, T b) {
        return a > b ? a : b;
    }

// range checked; guaranteed to NUL-terminate within the stated number of available slots
// NOTE: if this truncates the dst string due to running out of space, no attempt is
// made to avoid splitting surrogate pairs.
    static void strcpy16_dtoh(char16_t *dst, const uint16_t *src, size_t avail) {
        char16_t *last = dst + avail - 1;
        while (*src && (dst < last)) {
            char16_t s = dtohs(static_cast<char16_t>(*src));
            *dst++ = s;
            src++;
        }
        *dst = 0;
    }

    static status_t validate_chunk(const ResChunk_header *chunk,
                                   size_t minSize,
                                   const uint8_t *dataEnd,
                                   const char *name) {
        const uint16_t headerSize = dtohs(chunk->headerSize);
        const uint32_t size = dtohl(chunk->size);

        if (headerSize >= minSize) {
            if (headerSize <= size) {
                if (((headerSize | size) & 0x3) == 0) {
                    if ((size_t) size <= (size_t) (dataEnd - ((const uint8_t *) chunk))) {
                        return NO_ERROR;
                    }
                    ALOGW("%s data size 0x%x extends beyond resource end %p.",
                          name, size, (void *) (dataEnd - ((const uint8_t *) chunk)));
                    return BAD_TYPE;
                }
                ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
                      name, (int) size, (int) headerSize);
                return BAD_TYPE;
            }
            ALOGW("%s size 0x%x is smaller than header size 0x%x.",
                  name, size, headerSize);
            return BAD_TYPE;
        }
        ALOGW("%s header size 0x%04x is too small.",
              name, headerSize);
        return BAD_TYPE;
    }

    static void fill9patchOffsets(Res_png_9patch *patch) {
        patch->xDivsOffset = sizeof(Res_png_9patch);
        patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t));
        patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t));
    }

    inline void Res_value::copyFrom_dtoh(const Res_value &src) {
        size = dtohs(src.size);
        res0 = src.res0;
        dataType = src.dataType;
        data = dtohl(src.data);
    }

    void Res_png_9patch::deviceToFile() {
        int32_t *xDivs = getXDivs();
        for (int i = 0; i < numXDivs; i++) {
            xDivs[i] = htonl(xDivs[i]);
        }
        int32_t *yDivs = getYDivs();
        for (int i = 0; i < numYDivs; i++) {
            yDivs[i] = htonl(yDivs[i]);
        }
        paddingLeft = htonl(paddingLeft);
        paddingRight = htonl(paddingRight);
        paddingTop = htonl(paddingTop);
        paddingBottom = htonl(paddingBottom);
        uint32_t *colors = getColors();
        for (int i = 0; i < numColors; i++) {
            colors[i] = htonl(colors[i]);
        }
    }

    void Res_png_9patch::fileToDevice() {
        int32_t *xDivs = getXDivs();
        for (int i = 0; i < numXDivs; i++) {
            xDivs[i] = ntohl(xDivs[i]);
        }
        int32_t *yDivs = getYDivs();
        for (int i = 0; i < numYDivs; i++) {
            yDivs[i] = ntohl(yDivs[i]);
        }
        paddingLeft = ntohl(paddingLeft);
        paddingRight = ntohl(paddingRight);
        paddingTop = ntohl(paddingTop);
        paddingBottom = ntohl(paddingBottom);
        uint32_t *colors = getColors();
        for (int i = 0; i < numColors; i++) {
            colors[i] = ntohl(colors[i]);
        }
    }

    size_t Res_png_9patch::serializedSize() const {
        // The size of this struct is 32 bytes on the 32-bit target system
        // 4 * int8_t
        // 4 * int32_t
        // 3 * uint32_t
        return 32
               + numXDivs * sizeof(int32_t)
               + numYDivs * sizeof(int32_t)
               + numColors * sizeof(uint32_t);
    }

    void *Res_png_9patch::serialize(const Res_png_9patch &patch, const int32_t *xDivs,
                                    const int32_t *yDivs, const uint32_t *colors) {
        // Use calloc since we're going to leave a few holes in the data
        // and want this to run cleanly under valgrind
        void *newData = calloc(1, patch.serializedSize());
        serialize(patch, xDivs, yDivs, colors, newData);
        return newData;
    }

    void Res_png_9patch::serialize(const Res_png_9patch &patch, const int32_t *xDivs,
                                   const int32_t *yDivs, const uint32_t *colors, void *outData) {
        uint8_t *data = (uint8_t *) outData;
        memcpy(data, &patch.wasDeserialized,
               4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
        memcpy(data + 12, &patch.paddingLeft, 16);   // copy paddingXXXX
        data += 32;

        memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t));
        data += patch.numXDivs * sizeof(int32_t);
        memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t));
        data += patch.numYDivs * sizeof(int32_t);
        memcpy(data, colors, patch.numColors * sizeof(uint32_t));

        fill9patchOffsets(reinterpret_cast<Res_png_9patch *>(outData));
    }

    static bool assertIdmapHeader(const void *idmap, size_t size) {
        if (reinterpret_cast<uintptr_t>(idmap) & 0x03) {
            ALOGE("idmap: header is not word aligned");
            return false;
        }

        if (size < ResTable::IDMAP_HEADER_SIZE_BYTES) {
            ALOGW("idmap: header too small (%d bytes)", (uint32_t) size);
            return false;
        }

        const uint32_t magic = htodl(*reinterpret_cast<const uint32_t *>(idmap));
        if (magic != IDMAP_MAGIC) {
            ALOGW("idmap: no magic found in header (is 0x%08x, expected 0x%08x)",
                  magic, IDMAP_MAGIC);
            return false;
        }

        const uint32_t version = htodl(*(reinterpret_cast<const uint32_t *>(idmap) + 1));
        if (version != IDMAP_CURRENT_VERSION) {
            // We are strict about versions because files with this format are
            // auto-generated and don't need backwards compatibility.
            ALOGW("idmap: version mismatch in header (is 0x%08x, expected 0x%08x)",
                  version, IDMAP_CURRENT_VERSION);
            return false;
        }
        return true;
    }

    class IdmapEntries {
    public:
        IdmapEntries() : mData(NULL) {}

        bool hasEntries() const {
            if (mData == NULL) {
                return false;
            }

            return (dtohs(*mData) > 0);
        }

        size_t byteSize() const {
            if (mData == NULL) {
                return 0;
            }
            uint16_t entryCount = dtohs(mData[2]);
            return (sizeof(uint16_t) * 4) + (sizeof(uint32_t) * static_cast<size_t>(entryCount));
        }

        uint8_t targetTypeId() const {
            if (mData == NULL) {
                return 0;
            }
            return dtohs(mData[0]);
        }

        uint8_t overlayTypeId() const {
            if (mData == NULL) {
                return 0;
            }
            return dtohs(mData[1]);
        }

        status_t setTo(const void *entryHeader, size_t size) {
            if (reinterpret_cast<uintptr_t>(entryHeader) & 0x03) {
                ALOGE("idmap: entry header is not word aligned");
                return UNKNOWN_ERROR;
            }

            if (size < sizeof(uint16_t) * 4) {
                ALOGE("idmap: entry header is too small (%u bytes)", (uint32_t) size);
                return UNKNOWN_ERROR;
            }

            const uint16_t *header = reinterpret_cast<const uint16_t *>(entryHeader);
            const uint16_t targetTypeId = dtohs(header[0]);
            const uint16_t overlayTypeId = dtohs(header[1]);
            if (targetTypeId == 0 || overlayTypeId == 0 || targetTypeId > 255 ||
                overlayTypeId > 255) {
                ALOGE("idmap: invalid type map (%u -> %u)", targetTypeId, overlayTypeId);
                return UNKNOWN_ERROR;
            }

            uint16_t entryCount = dtohs(header[2]);
            if (size < sizeof(uint32_t) * (entryCount + 2)) {
                ALOGE("idmap: too small (%u bytes) for the number of entries (%u)",
                      (uint32_t) size, (uint32_t) entryCount);
                return UNKNOWN_ERROR;
            }
            mData = header;
            return NO_ERROR;
        }

        status_t lookup(uint16_t entryId, uint16_t *outEntryId) const {
            uint16_t entryCount = dtohs(mData[2]);
            uint16_t offset = dtohs(mData[3]);

            if (entryId < offset) {
                // The entry is not present in this idmap
                return BAD_INDEX;
            }

            entryId -= offset;

            if (entryId >= entryCount) {
                // The entry is not present in this idmap
                return BAD_INDEX;
            }

            // It is safe to access the type here without checking the size because
            // we have checked this when it was first loaded.
            const uint32_t *entries = reinterpret_cast<const uint32_t *>(mData) + 2;
            uint32_t mappedEntry = dtohl(entries[entryId]);
            if (mappedEntry == 0xffffffff) {
                // This entry is not present in this idmap
                return BAD_INDEX;
            }
            *outEntryId = static_cast<uint16_t>(mappedEntry);
            return NO_ERROR;
        }

    private:
        const uint16_t *mData;
    };

    status_t parseIdmap(const void *idmap, size_t size, uint8_t *outPackageId,
                        KeyedVector<uint8_t, IdmapEntries> *outMap) {
        if (!assertIdmapHeader(idmap, size)) {
            return UNKNOWN_ERROR;
        }

        size -= ResTable::IDMAP_HEADER_SIZE_BYTES;
        if (size < sizeof(uint16_t) * 2) {
            ALOGE("idmap: too small to contain any mapping");
            return UNKNOWN_ERROR;
        }

        const uint16_t *data = reinterpret_cast<const uint16_t *>(
                reinterpret_cast<const uint8_t *>(idmap) + ResTable::IDMAP_HEADER_SIZE_BYTES);

        uint16_t targetPackageId = dtohs(*(data++));
        if (targetPackageId == 0 || targetPackageId > 255) {
            ALOGE("idmap: target package ID is invalid (%02x)", targetPackageId);
            return UNKNOWN_ERROR;
        }

        uint16_t mapCount = dtohs(*(data++));
        if (mapCount == 0) {
            ALOGE("idmap: no mappings");
            return UNKNOWN_ERROR;
        }

        if (mapCount > 255) {
            ALOGW("idmap: too many mappings. Only 255 are possible but %u are present",
                  (uint32_t) mapCount);
        }

        while (size > sizeof(uint16_t) * 4) {
            IdmapEntries entries;
            status_t err = entries.setTo(data, size);
            if (err != NO_ERROR) {
                return err;
            }

            ssize_t index = outMap->add(entries.overlayTypeId(), entries);
            if (index < 0) {
                return NO_MEMORY;
            }

            data += entries.byteSize() / sizeof(uint16_t);
            size -= entries.byteSize();
        }

        if (outPackageId != NULL) {
            *outPackageId = static_cast<uint8_t>(targetPackageId);
        }
        return NO_ERROR;
    }

    Res_png_9patch *Res_png_9patch::deserialize(void *inData) {

        Res_png_9patch *patch = reinterpret_cast<Res_png_9patch *>(inData);
        patch->wasDeserialized = true;
        fill9patchOffsets(patch);

        return patch;
    }

// --------------------------------------------------------------------
// --------------------------------------------------------------------
// --------------------------------------------------------------------

    ResStringPool::ResStringPool()
            : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) {
    }

    ResStringPool::ResStringPool(const void *data, size_t size, bool copyData)
            : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) {
        setTo(data, size, copyData);
    }

    ResStringPool::~ResStringPool() {
        uninit();
    }

    void ResStringPool::setToEmpty() {
        uninit();

        mOwnedData = calloc(1, sizeof(ResStringPool_header));
        ResStringPool_header *header = (ResStringPool_header *) mOwnedData;
        mSize = 0;
        mEntries = NULL;
        mStrings = NULL;
        mStringPoolSize = 0;
        mEntryStyles = NULL;
        mStyles = NULL;
        mStylePoolSize = 0;
        mHeader = (const ResStringPool_header *) header;
    }

    status_t ResStringPool::setTo(const void *data, size_t size, bool copyData) {
        if (!data || !size) {
            return (mError = BAD_TYPE);
        }

        uninit();

        const bool notDeviceEndian = htods(0xf0) != 0xf0;

        if (copyData || notDeviceEndian) {
            mOwnedData = malloc(size);
            if (mOwnedData == NULL) {
                return (mError = NO_MEMORY);
            }
            memcpy(mOwnedData, data, size);
            data = mOwnedData;
        }

        mHeader = (const ResStringPool_header *) data;

        if (notDeviceEndian) {
            ResStringPool_header *h = const_cast<ResStringPool_header *>(mHeader);
            h->header.headerSize = dtohs(mHeader->header.headerSize);
            h->header.type = dtohs(mHeader->header.type);
            h->header.size = dtohl(mHeader->header.size);
            h->stringCount = dtohl(mHeader->stringCount);
            h->styleCount = dtohl(mHeader->styleCount);
            h->flags = dtohl(mHeader->flags);
            h->stringsStart = dtohl(mHeader->stringsStart);
            h->stylesStart = dtohl(mHeader->stylesStart);
        }

        if (mHeader->header.headerSize > mHeader->header.size
            || mHeader->header.size > size) {
            ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
                  (int) mHeader->header.headerSize, (int) mHeader->header.size, (int) size);
            return (mError = BAD_TYPE);
        }
        mSize = mHeader->header.size;
        mEntries = (const uint32_t *)
                (((const uint8_t *) data) + mHeader->header.headerSize);

        if (mHeader->stringCount > 0) {
            if ((mHeader->stringCount * sizeof(uint32_t) <
                 mHeader->stringCount)  // uint32 overflow?
                || (mHeader->header.headerSize + (mHeader->stringCount * sizeof(uint32_t)))
                   > size) {
                ALOGW("Bad string block: entry of %d items extends past data size %d\n",
                      (int) (mHeader->header.headerSize +
                             (mHeader->stringCount * sizeof(uint32_t))),
                      (int) size);
                return (mError = BAD_TYPE);
            }

            size_t charSize;
            if (mHeader->flags & ResStringPool_header::UTF8_FLAG) {
                charSize = sizeof(uint8_t);
            } else {
                charSize = sizeof(uint16_t);
            }

            // There should be at least space for the smallest string
            // (2 bytes length, null terminator).
            if (mHeader->stringsStart >= (mSize - sizeof(uint16_t))) {
                ALOGW("Bad string block: string pool starts at %d, after total size %d\n",
                      (int) mHeader->stringsStart, (int) mHeader->header.size);
                return (mError = BAD_TYPE);
            }

            mStrings = (const void *)
                    (((const uint8_t *) data) + mHeader->stringsStart);

            if (mHeader->styleCount == 0) {
                mStringPoolSize = (mSize - mHeader->stringsStart) / charSize;
            } else {
                // check invariant: styles starts before end of data
                if (mHeader->stylesStart >= (mSize - sizeof(uint16_t))) {
                    ALOGW("Bad style block: style block starts at %d past data size of %d\n",
                          (int) mHeader->stylesStart, (int) mHeader->header.size);
                    return (mError = BAD_TYPE);
                }
                // check invariant: styles follow the strings
                if (mHeader->stylesStart <= mHeader->stringsStart) {
                    ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
                          (int) mHeader->stylesStart, (int) mHeader->stringsStart);
                    return (mError = BAD_TYPE);
                }
                mStringPoolSize =
                        (mHeader->stylesStart - mHeader->stringsStart) / charSize;
            }

            // check invariant: stringCount > 0 requires a string pool to exist
            if (mStringPoolSize == 0) {
                ALOGW("Bad string block: stringCount is %d but pool size is 0\n",
                      (int) mHeader->stringCount);
                return (mError = BAD_TYPE);
            }

            if (notDeviceEndian) {
                size_t i;
                uint32_t *e = const_cast<uint32_t *>(mEntries);
                for (i = 0; i < mHeader->stringCount; i++) {
                    e[i] = dtohl(mEntries[i]);
                }
                if (!(mHeader->flags & ResStringPool_header::UTF8_FLAG)) {
                    const uint16_t *strings = (const uint16_t *) mStrings;
                    uint16_t *s = const_cast<uint16_t *>(strings);
                    for (i = 0; i < mStringPoolSize; i++) {
                        s[i] = dtohs(strings[i]);
                    }
                }
            }

            if ((mHeader->flags & ResStringPool_header::UTF8_FLAG &&
                 ((uint8_t *) mStrings)[mStringPoolSize - 1] != 0) ||
                (!(mHeader->flags & ResStringPool_header::UTF8_FLAG) &&
                 ((uint16_t *) mStrings)[mStringPoolSize - 1] != 0)) {
                ALOGW("Bad string block: last string is not 0-terminated\n");
                return (mError = BAD_TYPE);
            }
        } else {
            mStrings = NULL;
            mStringPoolSize = 0;
        }

        if (mHeader->styleCount > 0) {
            mEntryStyles = mEntries + mHeader->stringCount;
            // invariant: integer overflow in calculating mEntryStyles
            if (mEntryStyles < mEntries) {
                ALOGW("Bad string block: integer overflow finding styles\n");
                return (mError = BAD_TYPE);
            }

            if (((const uint8_t *) mEntryStyles - (const uint8_t *) mHeader) > (int) size) {
                ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
                      (int) ((const uint8_t *) mEntryStyles - (const uint8_t *) mHeader),
                      (int) size);
                return (mError = BAD_TYPE);
            }
            mStyles = (const uint32_t *)
                    (((const uint8_t *) data) + mHeader->stylesStart);
            if (mHeader->stylesStart >= mHeader->header.size) {
                ALOGW("Bad string block: style pool starts %d, after total size %d\n",
                      (int) mHeader->stylesStart, (int) mHeader->header.size);
                return (mError = BAD_TYPE);
            }
            mStylePoolSize =
                    (mHeader->header.size - mHeader->stylesStart) / sizeof(uint32_t);

            if (notDeviceEndian) {
                size_t i;
                uint32_t *e = const_cast<uint32_t *>(mEntryStyles);
                for (i = 0; i < mHeader->styleCount; i++) {
                    e[i] = dtohl(mEntryStyles[i]);
                }
                uint32_t *s = const_cast<uint32_t *>(mStyles);
                for (i = 0; i < mStylePoolSize; i++) {
                    s[i] = dtohl(mStyles[i]);
                }
            }

            const ResStringPool_span endSpan = {
                    {htodl(ResStringPool_span::END)},
                    htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
            };
            if (memcmp(&mStyles[mStylePoolSize - (sizeof(endSpan) / sizeof(uint32_t))],
                       &endSpan, sizeof(endSpan)) != 0) {
                ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
                return (mError = BAD_TYPE);
            }
        } else {
            mEntryStyles = NULL;
            mStyles = NULL;
            mStylePoolSize = 0;
        }

        return (mError = NO_ERROR);
    }

    status_t ResStringPool::getError() const {
        return mError;
    }

    void ResStringPool::uninit() {
        mError = NO_INIT;
        if (mHeader != NULL && mCache != NULL) {
            for (size_t x = 0; x < mHeader->stringCount; x++) {
                if (mCache[x] != NULL) {
                    free(mCache[x]);
                    mCache[x] = NULL;
                }
            }
            free(mCache);
            mCache = NULL;
        }
        if (mOwnedData) {
            free(mOwnedData);
            mOwnedData = NULL;
        }
    }

/**
 * Strings in UTF-16 format have length indicated by a length encoded in the
 * stored data. It is either 1 or 2 characters of length data. This allows a
 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
 * much data in a string, you're abusing them.
 *
 * If the high bit is set, then there are two characters or 4 bytes of length
 * data encoded. In that case, drop the high bit of the first character and
 * add it together with the next character.
 */
    static inline size_t
    decodeLength(const uint16_t **str) {
        size_t len = **str;
        if ((len & 0x8000) != 0) {
            (*str)++;
            len = ((len & 0x7FFF) << 16) | **str;
        }
        (*str)++;
        return len;
    }

/**
 * Strings in UTF-8 format have length indicated by a length encoded in the
 * stored data. It is either 1 or 2 characters of length data. This allows a
 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
 * text in another way if you're using that much data in a single string.
 *
 * If the high bit is set, then there are two characters or 2 bytes of length
 * data encoded. In that case, drop the high bit of the first character and
 * add it together with the next character.
 */
    static inline size_t
    decodeLength(const uint8_t **str) {
        size_t len = **str;
        if ((len & 0x80) != 0) {
            (*str)++;
            len = ((len & 0x7F) << 8) | **str;
        }
        (*str)++;
        return len;
    }

    const char16_t *ResStringPool::stringAt(size_t idx, size_t *u16len) const {
        if (mError == NO_ERROR && idx < mHeader->stringCount) {
            const bool isUTF8 = (mHeader->flags & ResStringPool_header::UTF8_FLAG) != 0;
            const uint32_t off = mEntries[idx] / (isUTF8 ? sizeof(uint8_t) : sizeof(uint16_t));
            if (off < (mStringPoolSize - 1)) {
                if (!isUTF8) {
                    const uint16_t *strings = (uint16_t *) mStrings;
                    const uint16_t *str = strings + off;

                    *u16len = decodeLength(&str);
                    if ((uint32_t) (str + *u16len - strings) < mStringPoolSize) {
                        // Reject malformed (non null-terminated) strings
                        if (str[*u16len] != 0x0000) {
                            ALOGW("Bad string block: string #%d is not null-terminated",
                                  (int) idx);
                            return NULL;
                        }
                        return reinterpret_cast<const char16_t *>(str);
                    } else {
                        ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
                              (int) idx, (int) (str + *u16len - strings), (int) mStringPoolSize);
                    }
                } else {
                    const uint8_t *strings = (uint8_t *) mStrings;
                    const uint8_t *u8str = strings + off;

                    *u16len = decodeLength(&u8str);
                    size_t u8len = decodeLength(&u8str);

                    // encLen must be less than 0x7FFF due to encoding.
                    if ((uint32_t) (u8str + u8len - strings) < mStringPoolSize) {
                        AutoMutex lock(mDecodeLock);

                        if (mCache == NULL) {
#ifndef __ANDROID__
                                                                                                                                                    if (kDebugStringPoolNoisy) {
                            LOGI("CREATING STRING CACHE OF %zu bytes",
                                    mHeader->stringCount*sizeof(char16_t**));
                        }
#else
                            // We do not want to be in this case when actually running Android.
                            ALOGW("CREATING STRING CACHE OF %zu bytes",
                                  static_cast<size_t>(mHeader->stringCount * sizeof(char16_t **)));
#endif
                            mCache = (char16_t **) calloc(mHeader->stringCount, sizeof(char16_t *));
                            if (mCache == NULL) {
                                ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
                                      (int) (mHeader->stringCount * sizeof(char16_t **)));
                                return NULL;
                            }
                        }

                        if (mCache[idx] != NULL) {
                            return mCache[idx];
                        }

                        ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
                        if (actualLen < 0 || (size_t) actualLen != *u16len) {
                            ALOGW("Bad string block: string #%lld decoded length is not correct "
                                          "%lld vs %llu\n",
                                  (long long) idx, (long long) actualLen, (long long) *u16len);
                            return NULL;
                        }

                        // Reject malformed (non null-terminated) strings
                        if (u8str[u8len] != 0x00) {
                            ALOGW("Bad string block: string #%d is not null-terminated",
                                  (int) idx);
                            return NULL;
                        }

                        char16_t *u16str = (char16_t *) calloc(*u16len + 1, sizeof(char16_t));
                        if (!u16str) {
                            ALOGW("No memory when trying to allocate decode cache for string #%d\n",
                                  (int) idx);
                            return NULL;
                        }

                        if (kDebugStringPoolNoisy) {
                            LOGI("Caching UTF8 string: %s", u8str);
                        }
                        utf8_to_utf16(u8str, u8len, u16str, *u16len + 1);
                        mCache[idx] = u16str;
                        return u16str;
                    } else {
                        ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
                              (long long) idx, (long long) (u8str + u8len - strings),
                              (long long) mStringPoolSize);
                    }
                }
            } else {
                ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
                      (int) idx, (int) (off * sizeof(uint16_t)),
                      (int) (mStringPoolSize * sizeof(uint16_t)));
            }
        }
        return NULL;
    }

    const char *ResStringPool::string8At(size_t idx, size_t *outLen) const {
        if (mError == NO_ERROR && idx < mHeader->stringCount) {
            if ((mHeader->flags & ResStringPool_header::UTF8_FLAG) == 0) {
                return NULL;
            }
            const uint32_t off = mEntries[idx] / sizeof(char);
            if (off < (mStringPoolSize - 1)) {
                const uint8_t *strings = (uint8_t *) mStrings;
                const uint8_t *str = strings + off;
                *outLen = decodeLength(&str);
                size_t encLen = decodeLength(&str);
                if ((uint32_t) (str + encLen - strings) < mStringPoolSize) {
                    return (const char *) str;
                } else {
                    ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
                          (int) idx, (int) (str + encLen - strings), (int) mStringPoolSize);
                }
            } else {
                ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
                      (int) idx, (int) (off * sizeof(uint16_t)),
                      (int) (mStringPoolSize * sizeof(uint16_t)));
            }
        }
        return NULL;
    }

    const String8 ResStringPool::string8ObjectAt(size_t idx) const {
        size_t len;
        const char *str = string8At(idx, &len);
        if (str != NULL) {
            return String8(str, len);
        }

        const char16_t *str16 = stringAt(idx, &len);
        if (str16 != NULL) {
            return String8(str16, len);
        }
        return String8();
    }

    const ResStringPool_span *ResStringPool::styleAt(const ResStringPool_ref &ref) const {
        return styleAt(ref.index);
    }

    const ResStringPool_span *ResStringPool::styleAt(size_t idx) const {
        if (mError == NO_ERROR && idx < mHeader->styleCount) {
            const uint32_t off = (mEntryStyles[idx] / sizeof(uint32_t));
            if (off < mStylePoolSize) {
                return (const ResStringPool_span *) (mStyles + off);
            } else {
                ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
                      (int) idx, (int) (off * sizeof(uint32_t)),
                      (int) (mStylePoolSize * sizeof(uint32_t)));
            }
        }
        return NULL;
    }

    ssize_t ResStringPool::indexOfString(const char16_t *str, size_t strLen) const {
        if (mError != NO_ERROR) {
            return mError;
        }

        size_t len;

        if ((mHeader->flags & ResStringPool_header::UTF8_FLAG) != 0) {
            if (kDebugStringPoolNoisy) {
                LOGI("indexOfString UTF-8: %s", String8(str, strLen).string());
            }

            // The string pool contains UTF 8 strings; we don't want to cause
            // temporary UTF-16 strings to be created as we search.
            if (mHeader->flags & ResStringPool_header::SORTED_FLAG) {
                // Do a binary search for the string...  this is a little tricky,
                // because the strings are sorted with strzcmp16().  So to match
                // the ordering, we need to convert strings in the pool to UTF-16.
                // But we don't want to hit the cache, so instead we will have a
                // local temporary allocation for the conversions.
                size_t convBufferLen = strLen + 4;
                char16_t *convBuffer = (char16_t *) calloc(convBufferLen, sizeof(char16_t));
                ssize_t l = 0;
                ssize_t h = mHeader->stringCount - 1;

                ssize_t mid;
                while (l <= h) {
                    mid = l + (h - l) / 2;
                    const uint8_t *s = (const uint8_t *) string8At(mid, &len);
                    int c;
                    if (s != NULL) {
                        char16_t *end = utf8_to_utf16(s, len, convBuffer, convBufferLen);
                        c = strzcmp16(convBuffer, end - convBuffer, str, strLen);
                    } else {
                        c = -1;
                    }
                    if (kDebugStringPoolNoisy) {
                        LOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
                             (const char *) s, c, (int) l, (int) mid, (int) h);
                    }
                    if (c == 0) {
                        if (kDebugStringPoolNoisy) {
                            LOGI("MATCH!");
                        }
                        free(convBuffer);
                        return mid;
                    } else if (c < 0) {
                        l = mid + 1;
                    } else {
                        h = mid - 1;
                    }
                }
                free(convBuffer);
            } else {
                // It is unusual to get the ID from an unsorted string block...
                // most often this happens because we want to get IDs for style
                // span tags; since those always appear at the end of the string
                // block, start searching at the back.
                String8 str8(str, strLen);
                const size_t str8Len = str8.size();
                for (int i = mHeader->stringCount - 1; i >= 0; i--) {
                    const char *s = string8At(i, &len);
                    if (kDebugStringPoolNoisy) {
                        LOGI("Looking at %s, i=%d\n", String8(s).string(), i);
                    }
                    if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
                        if (kDebugStringPoolNoisy) {
                            LOGI("MATCH!");
                        }
                        return i;
                    }
                }
            }

        } else {
            if (kDebugStringPoolNoisy) {
                LOGI("indexOfString UTF-16: %s", String8(str, strLen).string());
            }

            if (mHeader->flags & ResStringPool_header::SORTED_FLAG) {
                // Do a binary search for the string...
                ssize_t l = 0;
                ssize_t h = mHeader->stringCount - 1;

                ssize_t mid;
                while (l <= h) {
                    mid = l + (h - l) / 2;
                    const char16_t *s = stringAt(mid, &len);
                    int c = s ? strzcmp16(s, len, str, strLen) : -1;
                    if (kDebugStringPoolNoisy) {
                        LOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
                             String8(s).string(), c, (int) l, (int) mid, (int) h);
                    }
                    if (c == 0) {
                        if (kDebugStringPoolNoisy) {
                            LOGI("MATCH!");
                        }
                        return mid;
                    } else if (c < 0) {
                        l = mid + 1;
                    } else {
                        h = mid - 1;
                    }
                }
            } else {
                // It is unusual to get the ID from an unsorted string block...
                // most often this happens because we want to get IDs for style
                // span tags; since those always appear at the end of the string
                // block, start searching at the back.
                for (int i = mHeader->stringCount - 1; i >= 0; i--) {
                    const char16_t *s = stringAt(i, &len);
                    if (kDebugStringPoolNoisy) {
                        LOGI("Looking at %s, i=%d\n", String8(s).string(), i);
                    }
                    if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
                        if (kDebugStringPoolNoisy) {
                            LOGI("MATCH!");
                        }
                        return i;
                    }
                }
            }
        }

        return NAME_NOT_FOUND;
    }

    size_t ResStringPool::size() const {
        return (mError == NO_ERROR) ? mHeader->stringCount : 0;
    }

    size_t ResStringPool::styleCount() const {
        return (mError == NO_ERROR) ? mHeader->styleCount : 0;
    }

    size_t ResStringPool::bytes() const {
        return (mError == NO_ERROR) ? mHeader->header.size : 0;
    }

    bool ResStringPool::isSorted() const {
        return (mHeader->flags & ResStringPool_header::SORTED_FLAG) != 0;
    }

    bool ResStringPool::isUTF8() const {
        return (mHeader->flags & ResStringPool_header::UTF8_FLAG) != 0;
    }

// --------------------------------------------------------------------
// --------------------------------------------------------------------
// --------------------------------------------------------------------

    ResXMLParser::ResXMLParser(const ResXMLTree &tree)
            : mTree(tree), mEventCode(BAD_DOCUMENT) {
    }

    void ResXMLParser::restart() {
        mCurNode = NULL;
        mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
    }

    const ResStringPool &ResXMLParser::getStrings() const {
        return mTree.mStrings;
    }

    ResXMLParser::event_code_t ResXMLParser::getEventType() const {
        return mEventCode;
    }

    ResXMLParser::event_code_t ResXMLParser::next() {
        if (mEventCode == START_DOCUMENT) {
            mCurNode = mTree.mRootNode;
            mCurExt = mTree.mRootExt;
            return (mEventCode = mTree.mRootCode);
        } else if (mEventCode >= FIRST_CHUNK_CODE) {
            return nextNode();
        }
        return mEventCode;
    }

    int32_t ResXMLParser::getCommentID() const {
        return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
    }

    const char16_t *ResXMLParser::getComment(size_t *outLen) const {
        int32_t id = getCommentID();
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    uint32_t ResXMLParser::getLineNumber() const {
        return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
    }

    int32_t ResXMLParser::getTextID() const {
        if (mEventCode == TEXT) {
            return dtohl(((const ResXMLTree_cdataExt *) mCurExt)->data.index);
        }
        return -1;
    }

    const char16_t *ResXMLParser::getText(size_t *outLen) const {
        int32_t id = getTextID();
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    ssize_t ResXMLParser::getTextValue(Res_value *outValue) const {
        if (mEventCode == TEXT) {
            outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt *) mCurExt)->typedData);
            return sizeof(Res_value);
        }
        return BAD_TYPE;
    }

    int32_t ResXMLParser::getNamespacePrefixID() const {
        if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
            return dtohl(((const ResXMLTree_namespaceExt *) mCurExt)->prefix.index);
        }
        return -1;
    }

    const char16_t *ResXMLParser::getNamespacePrefix(size_t *outLen) const {
        int32_t id = getNamespacePrefixID();
        //printf("prefix=%d  event=%p\n", id, mEventCode);
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    int32_t ResXMLParser::getNamespaceUriID() const {
        if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
            return dtohl(((const ResXMLTree_namespaceExt *) mCurExt)->uri.index);
        }
        return -1;
    }

    const char16_t *ResXMLParser::getNamespaceUri(size_t *outLen) const {
        int32_t id = getNamespaceUriID();
        //printf("uri=%d  event=%p\n", id, mEventCode);
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    int32_t ResXMLParser::getElementNamespaceID() const {
        if (mEventCode == START_TAG) {
            return dtohl(((const ResXMLTree_attrExt *) mCurExt)->ns.index);
        }
        if (mEventCode == END_TAG) {
            return dtohl(((const ResXMLTree_endElementExt *) mCurExt)->ns.index);
        }
        return -1;
    }

    const char16_t *ResXMLParser::getElementNamespace(size_t *outLen) const {
        int32_t id = getElementNamespaceID();
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    int32_t ResXMLParser::getElementNameID() const {
        if (mEventCode == START_TAG) {
            return dtohl(((const ResXMLTree_attrExt *) mCurExt)->name.index);
        }
        if (mEventCode == END_TAG) {
            return dtohl(((const ResXMLTree_endElementExt *) mCurExt)->name.index);
        }
        return -1;
    }

    const char16_t *ResXMLParser::getElementName(size_t *outLen) const {
        int32_t id = getElementNameID();
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    size_t ResXMLParser::getAttributeCount() const {
        if (mEventCode == START_TAG) {
            return dtohs(((const ResXMLTree_attrExt *) mCurExt)->attributeCount);
        }
        return 0;
    }

    int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const {
        if (mEventCode == START_TAG) {
            const ResXMLTree_attrExt *tag = (const ResXMLTree_attrExt *) mCurExt;
            if (idx < dtohs(tag->attributeCount)) {
                const ResXMLTree_attribute *attr = (const ResXMLTree_attribute *)
                        (((const uint8_t *) tag)
                         + dtohs(tag->attributeStart)
                         + (dtohs(tag->attributeSize) * idx));
                return dtohl(attr->ns.index);
            }
        }
        return -2;
    }

    const char16_t *ResXMLParser::getAttributeNamespace(size_t idx, size_t *outLen) const {
        int32_t id = getAttributeNamespaceID(idx);
        //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
        if (kDebugXMLNoisy) {
            printf("getAttributeNamespace 0x%zx=0x%x\n", idx, id);
        }
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    const char *ResXMLParser::getAttributeNamespace8(size_t idx, size_t *outLen) const {
        int32_t id = getAttributeNamespaceID(idx);
        //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
        if (kDebugXMLNoisy) {
            printf("getAttributeNamespace 0x%zx=0x%x\n", idx, id);
        }
        return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
    }

    int32_t ResXMLParser::getAttributeNameID(size_t idx) const {
        if (mEventCode == START_TAG) {
            const ResXMLTree_attrExt *tag = (const ResXMLTree_attrExt *) mCurExt;
            if (idx < dtohs(tag->attributeCount)) {
                const ResXMLTree_attribute *attr = (const ResXMLTree_attribute *)
                        (((const uint8_t *) tag)
                         + dtohs(tag->attributeStart)
                         + (dtohs(tag->attributeSize) * idx));
                return dtohl(attr->name.index);
            }
        }
        return -1;
    }

    const char16_t *ResXMLParser::getAttributeName(size_t idx, size_t *outLen) const {
        int32_t id = getAttributeNameID(idx);
        //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
        if (kDebugXMLNoisy) {
            printf("getAttributeName 0x%zx=0x%x\n", idx, id);
        }
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    const char *ResXMLParser::getAttributeName8(size_t idx, size_t *outLen) const {
        int32_t id = getAttributeNameID(idx);
        //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
        if (kDebugXMLNoisy) {
            printf("getAttributeName 0x%zx=0x%x\n", idx, id);
        }
        return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
    }

    uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const {
        int32_t id = getAttributeNameID(idx);
        if (id >= 0 && (size_t) id < mTree.mNumResIds) {
            uint32_t resId = dtohl(mTree.mResIds[id]);
            if (mTree.mDynamicRefTable != NULL) {
                mTree.mDynamicRefTable->lookupResourceId(&resId);
            }
            return resId;
        }
        return 0;
    }

    int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const {
        if (mEventCode == START_TAG) {
            const ResXMLTree_attrExt *tag = (const ResXMLTree_attrExt *) mCurExt;
            if (idx < dtohs(tag->attributeCount)) {
                const ResXMLTree_attribute *attr = (const ResXMLTree_attribute *)
                        (((const uint8_t *) tag)
                         + dtohs(tag->attributeStart)
                         + (dtohs(tag->attributeSize) * idx));
                return dtohl(attr->rawValue.index);
            }
        }
        return -1;
    }

    const char16_t *ResXMLParser::getAttributeStringValue(size_t idx, size_t *outLen) const {
        int32_t id = getAttributeValueStringID(idx);
        if (kDebugXMLNoisy) {
            printf("getAttributeValue 0x%zx=0x%x\n", idx, id);
        }
        return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
    }

    int32_t ResXMLParser::getAttributeDataType(size_t idx) const {
        if (mEventCode == START_TAG) {
            const ResXMLTree_attrExt *tag = (const ResXMLTree_attrExt *) mCurExt;
            if (idx < dtohs(tag->attributeCount)) {
                const ResXMLTree_attribute *attr = (const ResXMLTree_attribute *)
                        (((const uint8_t *) tag)
                         + dtohs(tag->attributeStart)
                         + (dtohs(tag->attributeSize) * idx));
                uint8_t type = attr->typedValue.dataType;
                if (type != Res_value::TYPE_DYNAMIC_REFERENCE) {
                    return type;
                }

                // This is a dynamic reference. We adjust those references
                // to regular references at this level, so lie to the caller.
                return Res_value::TYPE_REFERENCE;
            }
        }
        return Res_value::TYPE_NULL;
    }

    int32_t ResXMLParser::getAttributeData(size_t idx) const {
        if (mEventCode == START_TAG) {
            const ResXMLTree_attrExt *tag = (const ResXMLTree_attrExt *) mCurExt;
            if (idx < dtohs(tag->attributeCount)) {
                const ResXMLTree_attribute *attr = (const ResXMLTree_attribute *)
                        (((const uint8_t *) tag)
                         + dtohs(tag->attributeStart)
                         + (dtohs(tag->attributeSize) * idx));
                if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE ||
                    mTree.mDynamicRefTable == NULL) {
                    return dtohl(attr->typedValue.data);
                }

                uint32_t data = dtohl(attr->typedValue.data);
                if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) {
                    return data;
                }
            }
        }
        return 0;
    }

    ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value *outValue) const {
        if (mEventCode == START_TAG) {
            const ResXMLTree_attrExt *tag = (const ResXMLTree_attrExt *) mCurExt;
            if (idx < dtohs(tag->attributeCount)) {
                const ResXMLTree_attribute *attr = (const ResXMLTree_attribute *)
                        (((const uint8_t *) tag)
                         + dtohs(tag->attributeStart)
                         + (dtohs(tag->attributeSize) * idx));
                outValue->copyFrom_dtoh(attr->typedValue);
                if (mTree.mDynamicRefTable != NULL &&
                    mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) {
                    return BAD_TYPE;
                }
                return sizeof(Res_value);
            }
        }
        return BAD_TYPE;
    }

    ssize_t ResXMLParser::indexOfAttribute(const char *ns, const char *attr) const {
        String16 nsStr(ns != NULL ? ns : "");
        String16 attrStr(attr);
        return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
                                attrStr.string(), attrStr.size());
    }

    ssize_t ResXMLParser::indexOfAttribute(const char16_t *ns, size_t nsLen,
                                           const char16_t *attr, size_t attrLen) const {
        if (mEventCode == START_TAG) {
            if (attr == NULL) {
                return NAME_NOT_FOUND;
            }
            const size_t N = getAttributeCount();
            if (mTree.mStrings.isUTF8()) {
                String8 ns8, attr8;
                if (ns != NULL) {
                    ns8 = String8(ns, nsLen);
                }
                attr8 = String8(attr, attrLen);
                if (kDebugStringPoolNoisy) {
                    LOGI("indexOfAttribute UTF8 %s (%zu) / %s (%zu)", ns8.string(), nsLen,
                         attr8.string(), attrLen);
                }
                for (size_t i = 0; i < N; i++) {
                    size_t curNsLen = 0, curAttrLen = 0;
                    const char *curNs = getAttributeNamespace8(i, &curNsLen);
                    const char *curAttr = getAttributeName8(i, &curAttrLen);
                    if (kDebugStringPoolNoisy) {
                        LOGI("  curNs=%s (%zu), curAttr=%s (%zu)", curNs, curNsLen, curAttr,
                             curAttrLen);
                    }
                    if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
                        && memcmp(attr8.string(), curAttr, attrLen) == 0) {
                        if (ns == NULL) {
                            if (curNs == NULL) {
                                if (kDebugStringPoolNoisy) {
                                    LOGI("  FOUND!");
                                }
                                return i;
                            }
                        } else if (curNs != NULL) {
                            //printf(" --> ns=%s, curNs=%s\n",
                            //       String8(ns).string(), String8(curNs).string());
                            if (memcmp(ns8.string(), curNs, nsLen) == 0) {
                                if (kDebugStringPoolNoisy) {
                                    LOGI("  FOUND!");
                                }
                                return i;
                            }
                        }
                    }
                }
            } else {
                if (kDebugStringPoolNoisy) {
                    LOGI("indexOfAttribute UTF16 %s (%zu) / %s (%zu)",
                         String8(ns, nsLen).string(), nsLen,
                         String8(attr, attrLen).string(), attrLen);
                }
                for (size_t i = 0; i < N; i++) {
                    size_t curNsLen = 0, curAttrLen = 0;
                    const char16_t *curNs = getAttributeNamespace(i, &curNsLen);
                    const char16_t *curAttr = getAttributeName(i, &curAttrLen);
                    if (kDebugStringPoolNoisy) {
                        LOGI("  curNs=%s (%zu), curAttr=%s (%zu)",
                             String8(curNs, curNsLen).string(), curNsLen,
                             String8(curAttr, curAttrLen).string(), curAttrLen);
                    }
                    if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
                        && (memcmp(attr, curAttr, attrLen * sizeof(char16_t)) == 0)) {
                        if (ns == NULL) {
                            if (curNs == NULL) {
                                if (kDebugStringPoolNoisy) {
                                    LOGI("  FOUND!");
                                }
                                return i;
                            }
                        } else if (curNs != NULL) {
                            //printf(" --> ns=%s, curNs=%s\n",
                            //       String8(ns).string(), String8(curNs).string());
                            if (memcmp(ns, curNs, nsLen * sizeof(char16_t)) == 0) {
                                if (kDebugStringPoolNoisy) {
                                    LOGI("  FOUND!");
                                }
                                return i;
                            }
                        }
                    }
                }
            }
        }

        return NAME_NOT_FOUND;
    }

    ssize_t ResXMLParser::indexOfID() const {
        if (mEventCode == START_TAG) {
            const ssize_t idx = dtohs(((const ResXMLTree_attrExt *) mCurExt)->idIndex);
            if (idx > 0) return (idx - 1);
        }
        return NAME_NOT_FOUND;
    }

    ssize_t ResXMLParser::indexOfClass() const {
        if (mEventCode == START_TAG) {
            const ssize_t idx = dtohs(((const ResXMLTree_attrExt *) mCurExt)->classIndex);
            if (idx > 0) return (idx - 1);
        }
        return NAME_NOT_FOUND;
    }

    ssize_t ResXMLParser::indexOfStyle() const {
        if (mEventCode == START_TAG) {
            const ssize_t idx = dtohs(((const ResXMLTree_attrExt *) mCurExt)->styleIndex);
            if (idx > 0) return (idx - 1);
        }
        return NAME_NOT_FOUND;
    }

    ResXMLParser::event_code_t ResXMLParser::nextNode() {
        if (mEventCode < 0) {
            return mEventCode;
        }

        do {
            const ResXMLTree_node *next = (const ResXMLTree_node *)
                    (((const uint8_t *) mCurNode) + dtohl(mCurNode->header.size));
            if (kDebugXMLNoisy) {
                LOGI("Next node: prev=%p, next=%p\n", mCurNode, next);
            }

            if (((const uint8_t *) next) >= mTree.mDataEnd) {
                mCurNode = NULL;
                return (mEventCode = END_DOCUMENT);
            }

            if (mTree.validateNode(next) != NO_ERROR) {
                mCurNode = NULL;
                return (mEventCode = BAD_DOCUMENT);
            }

            mCurNode = next;
            const uint16_t headerSize = dtohs(next->header.headerSize);
            const uint32_t totalSize = dtohl(next->header.size);
            mCurExt = ((const uint8_t *) next) + headerSize;
            size_t minExtSize = 0;
            event_code_t eventCode = (event_code_t) dtohs(next->header.type);
            switch ((mEventCode = eventCode)) {
                case RES_XML_START_NAMESPACE_TYPE:
                case RES_XML_END_NAMESPACE_TYPE:
                    minExtSize = sizeof(ResXMLTree_namespaceExt);
                    break;
                case RES_XML_START_ELEMENT_TYPE:
                    minExtSize = sizeof(ResXMLTree_attrExt);
                    break;
                case RES_XML_END_ELEMENT_TYPE:
                    minExtSize = sizeof(ResXMLTree_endElementExt);
                    break;
                case RES_XML_CDATA_TYPE:
                    minExtSize = sizeof(ResXMLTree_cdataExt);
                    break;
                default:
                    ALOGW("Unknown XML block: header type %d in node at %d\n",
                          (int) dtohs(next->header.type),
                          (int) (((const uint8_t *) next) - ((const uint8_t *) mTree.mHeader)));
                    continue;
            }

            if ((totalSize - headerSize) < minExtSize) {
                ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
                      (int) dtohs(next->header.type),
                      (int) (((const uint8_t *) next) - ((const uint8_t *) mTree.mHeader)),
                      (int) (totalSize - headerSize), (int) minExtSize);
                return (mEventCode = BAD_DOCUMENT);
            }

            //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
            //       mCurNode, mCurExt, headerSize, minExtSize);

            return eventCode;
        } while (true);
    }

    void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition *pos) const {
        pos->eventCode = mEventCode;
        pos->curNode = mCurNode;
        pos->curExt = mCurExt;
    }

    void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition &pos) {
        mEventCode = pos.eventCode;
        mCurNode = pos.curNode;
        mCurExt = pos.curExt;
    }

// --------------------------------------------------------------------

    static volatile int32_t gCount = 0;

    ResXMLTree::ResXMLTree(const DynamicRefTable *dynamicRefTable)
            : ResXMLParser(*this), mDynamicRefTable(dynamicRefTable), mError(NO_INIT),
              mOwnedData(NULL) {
        if (kDebugResXMLTree) {
            LOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount) + 1);
        }
        restart();
    }

    ResXMLTree::ResXMLTree()
            : ResXMLParser(*this), mDynamicRefTable(NULL), mError(NO_INIT), mOwnedData(NULL) {
        if (kDebugResXMLTree) {
            LOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount) + 1);
        }
        restart();
    }

    ResXMLTree::~ResXMLTree() {
        if (kDebugResXMLTree) {
            LOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount) - 1);
        }
        uninit();
    }

    status_t ResXMLTree::setTo(const void *data, size_t size, bool copyData) {
        uninit();
        mEventCode = START_DOCUMENT;

        if (!data || !size) {
            return (mError = BAD_TYPE);
        }

        if (copyData) {
            mOwnedData = malloc(size);
            if (mOwnedData == NULL) {
                return (mError = NO_MEMORY);
            }
            memcpy(mOwnedData, data, size);
            data = mOwnedData;
        }

        mHeader = (const ResXMLTree_header *) data;
        mSize = dtohl(mHeader->header.size);
        if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
            ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
                  (int) dtohs(mHeader->header.headerSize),
                  (int) dtohl(mHeader->header.size), (int) size);
            mError = BAD_TYPE;
            restart();
            return mError;
        }
        mDataEnd = ((const uint8_t *) mHeader) + mSize;

        mStrings.uninit();
        mRootNode = NULL;
        mResIds = NULL;
        mNumResIds = 0;

        // First look for a couple interesting chunks: the string block
        // and first XML node.
        const ResChunk_header *chunk =
                (const ResChunk_header *) (((const uint8_t *) mHeader) +
                                           dtohs(mHeader->header.headerSize));
        const ResChunk_header *lastChunk = chunk;
        while (((const uint8_t *) chunk) < (mDataEnd - sizeof(ResChunk_header)) &&
               ((const uint8_t *) chunk) < (mDataEnd - dtohl(chunk->size))) {
            status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
            if (err != NO_ERROR) {
                mError = err;
                goto done;
            }
            const uint16_t type = dtohs(chunk->type);
            const size_t size = dtohl(chunk->size);
            if (kDebugXMLNoisy) {
                printf("Scanning @ %p: type=0x%x, size=0x%zx\n",
                       (void *) (((uintptr_t) chunk) - ((uintptr_t) mHeader)), type, size);
            }
            if (type == RES_STRING_POOL_TYPE) {
                mStrings.setTo(chunk, size);
            } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
                mResIds = (const uint32_t *)
                        (((const uint8_t *) chunk) + dtohs(chunk->headerSize));
                mNumResIds = (dtohl(chunk->size) - dtohs(chunk->headerSize)) / sizeof(uint32_t);
            } else if (type >= RES_XML_FIRST_CHUNK_TYPE
                       && type <= RES_XML_LAST_CHUNK_TYPE) {
                if (validateNode((const ResXMLTree_node *) chunk) != NO_ERROR) {
                    mError = BAD_TYPE;
                    goto done;
                }
                mCurNode = (const ResXMLTree_node *) lastChunk;
                if (nextNode() == BAD_DOCUMENT) {
                    mError = BAD_TYPE;
                    goto done;
                }
                mRootNode = mCurNode;
                mRootExt = mCurExt;
                mRootCode = mEventCode;
                break;
            } else {
                if (kDebugXMLNoisy) {
                    printf("Skipping unknown chunk!\n");
                }
            }
            lastChunk = chunk;
            chunk = (const ResChunk_header *)
                    (((const uint8_t *) chunk) + size);
        }

        if (mRootNode == NULL) {
            ALOGW("Bad XML block: no root element node found\n");
            mError = BAD_TYPE;
            goto done;
        }

        mError = mStrings.getError();

        done:
        restart();
        return mError;
    }

    status_t ResXMLTree::getError() const {
        return mError;
    }

    void ResXMLTree::uninit() {
        mError = NO_INIT;
        mStrings.uninit();
        if (mOwnedData) {
            free(mOwnedData);
            mOwnedData = NULL;
        }
        restart();
    }

    status_t ResXMLTree::validateNode(const ResXMLTree_node *node) const {
        const uint16_t eventCode = dtohs(node->header.type);

        status_t err = validate_chunk(
                &node->header, sizeof(ResXMLTree_node),
                mDataEnd, "ResXMLTree_node");

        if (err >= NO_ERROR) {
            // Only perform additional validation on START nodes
            if (eventCode != RES_XML_START_ELEMENT_TYPE) {
                return NO_ERROR;
            }

            const uint16_t headerSize = dtohs(node->header.headerSize);
            const uint32_t size = dtohl(node->header.size);
            const ResXMLTree_attrExt *attrExt = (const ResXMLTree_attrExt *)
                    (((const uint8_t *) node) + headerSize);
            // check for sensical values pulled out of the stream so far...
            if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
                && ((void *) attrExt > (void *) node)) {
                const size_t attrSize = ((size_t) dtohs(attrExt->attributeSize))
                                        * dtohs(attrExt->attributeCount);
                if ((dtohs(attrExt->attributeStart) + attrSize) <= (size - headerSize)) {
                    return NO_ERROR;
                }
                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
                      (unsigned int) (dtohs(attrExt->attributeStart) + attrSize),
                      (unsigned int) (size - headerSize));
            } else {
                ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
                      (unsigned int) headerSize, (unsigned int) size);
            }
            return BAD_TYPE;
        }

        return err;

#if 0
                                                                                                                                const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;

    const uint16_t headerSize = dtohs(node->header.headerSize);
    const uint32_t size = dtohl(node->header.size);

    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
        if (size >= headerSize) {
            if (((const uint8_t*)node) <= (mDataEnd-size)) {
                if (!isStart) {
                    return NO_ERROR;
                }
                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
                        <= (size-headerSize)) {
                    return NO_ERROR;
                }
                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
                        (int)(size-headerSize));
                return BAD_TYPE;
            }
            ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
            return BAD_TYPE;
        }
        ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
                (int)headerSize, (int)size);
        return BAD_TYPE;
    }
    ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
            (int)headerSize);
    return BAD_TYPE;
#endif
    }

// --------------------------------------------------------------------
// --------------------------------------------------------------------
// --------------------------------------------------------------------

    void ResTable_config::copyFromDeviceNoSwap(const ResTable_config &o) {
        const size_t size = dtohl(o.size);
        if (size >= sizeof(ResTable_config)) {
            *this = o;
        } else {
            memcpy(this, &o, size);
            memset(((uint8_t *) this) + size, 0, sizeof(ResTable_config) - size);
        }
    }

/* static */ size_t unpackLanguageOrRegion(const char in[2], const char base,
                                           char out[4]) {
        if (in[0] & 0x80) {
            // The high bit is "1", which means this is a packed three letter
            // language code.

            // The smallest 5 bits of the second char are the first alphabet.
            const uint8_t first = in[1] & 0x1f;
            // The last three bits of the second char and the first two bits
            // of the first char are the second alphabet.
            const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3);
            // Bits 3 to 7 (inclusive) of the first char are the third alphabet.
            const uint8_t third = (in[0] & 0x7c) >> 2;

            out[0] = first + base;
            out[1] = second + base;
            out[2] = third + base;
            out[3] = 0;

            return 3;
        }

        if (in[0]) {
            memcpy(out, in, 2);
            memset(out + 2, 0, 2);
            return 2;
        }

        memset(out, 0, 4);
        return 0;
    }

/* static */ void packLanguageOrRegion(const char *in, const char base,
                                       char out[2]) {
        if (in[2] == 0 || in[2] == '-') {
            out[0] = in[0];
            out[1] = in[1];
        } else {
            uint8_t first = (in[0] - base) & 0x007f;
            uint8_t second = (in[1] - base) & 0x007f;
            uint8_t third = (in[2] - base) & 0x007f;

            out[0] = (0x80 | (third << 2) | (second >> 3));
            out[1] = ((second << 5) | first);
        }
    }


    void ResTable_config::packLanguage(const char *language) {
        packLanguageOrRegion(language, 'a', this->language);
    }

    void ResTable_config::packRegion(const char *region) {
        packLanguageOrRegion(region, '0', this->country);
    }

    size_t ResTable_config::unpackLanguage(char language[4]) const {
        return unpackLanguageOrRegion(this->language, 'a', language);
    }

    size_t ResTable_config::unpackRegion(char region[4]) const {
        return unpackLanguageOrRegion(this->country, '0', region);
    }


    void ResTable_config::copyFromDtoH(const ResTable_config &o) {
        copyFromDeviceNoSwap(o);
        size = sizeof(ResTable_config);
        mcc = dtohs(mcc);
        mnc = dtohs(mnc);
        density = dtohs(density);
        screenWidth = dtohs(screenWidth);
        screenHeight = dtohs(screenHeight);
        sdkVersion = dtohs(sdkVersion);
        minorVersion = dtohs(minorVersion);
        smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
        screenWidthDp = dtohs(screenWidthDp);
        screenHeightDp = dtohs(screenHeightDp);
    }

    void ResTable_config::swapHtoD() {
        size = htodl(size);
        mcc = htods(mcc);
        mnc = htods(mnc);
        density = htods(density);
        screenWidth = htods(screenWidth);
        screenHeight = htods(screenHeight);
        sdkVersion = htods(sdkVersion);
        minorVersion = htods(minorVersion);
        smallestScreenWidthDp = htods(smallestScreenWidthDp);
        screenWidthDp = htods(screenWidthDp);
        screenHeightDp = htods(screenHeightDp);
    }

/* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) {
        if (l.locale != r.locale) {
            // NOTE: This is the old behaviour with respect to comparison orders.
            // The diff value here doesn't make much sense (given our bit packing scheme)
            // but it's stable, and that's all we need.
            return l.locale - r.locale;
        }

        // The language & region are equal, so compare the scripts and variants.
        const char emptyScript[sizeof(l.localeScript)] = {'\0', '\0', '\0', '\0'};
        const char *lScript = l.localeScriptWasComputed ? emptyScript : l.localeScript;
        const char *rScript = r.localeScriptWasComputed ? emptyScript : r.localeScript;
        int script = memcmp(lScript, rScript, sizeof(l.localeScript));
        if (script) {
            return script;
        }

        // The language, region and script are equal, so compare variants.
        //
        // This should happen very infrequently (if at all.)
        return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant));
    }

    int ResTable_config::compare(const ResTable_config &o) const {
        int32_t diff = (int32_t) (imsi - o.imsi);
        if (diff != 0) return diff;
        diff = compareLocales(*this, o);
        if (diff != 0) return diff;
        diff = (int32_t) (screenType - o.screenType);
        if (diff != 0) return diff;
        diff = (int32_t) (input - o.input);
        if (diff != 0) return diff;
        diff = (int32_t) (screenSize - o.screenSize);
        if (diff != 0) return diff;
        diff = (int32_t) (version - o.version);
        if (diff != 0) return diff;
        diff = (int32_t) (screenLayout - o.screenLayout);
        if (diff != 0) return diff;
        diff = (int32_t) (screenLayout2 - o.screenLayout2);
        if (diff != 0) return diff;
        diff = (int32_t) (uiMode - o.uiMode);
        if (diff != 0) return diff;
        diff = (int32_t) (smallestScreenWidthDp - o.smallestScreenWidthDp);
        if (diff != 0) return diff;
        diff = (int32_t) (screenSizeDp - o.screenSizeDp);
        return (int) diff;
    }

    int ResTable_config::compareLogical(const ResTable_config &o) const {
        if (mcc != o.mcc) {
            return mcc < o.mcc ? -1 : 1;
        }
        if (mnc != o.mnc) {
            return mnc < o.mnc ? -1 : 1;
        }

        int diff = compareLocales(*this, o);
        if (diff < 0) {
            return -1;
        }
        if (diff > 0) {
            return 1;
        }

        if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
            return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
        }
        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
            return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
        }
        if (screenWidthDp != o.screenWidthDp) {
            return screenWidthDp < o.screenWidthDp ? -1 : 1;
        }
        if (screenHeightDp != o.screenHeightDp) {
            return screenHeightDp < o.screenHeightDp ? -1 : 1;
        }
        if (screenWidth != o.screenWidth) {
            return screenWidth < o.screenWidth ? -1 : 1;
        }
        if (screenHeight != o.screenHeight) {
            return screenHeight < o.screenHeight ? -1 : 1;
        }
        if (density != o.density) {
            return density < o.density ? -1 : 1;
        }
        if (orientation != o.orientation) {
            return orientation < o.orientation ? -1 : 1;
        }
        if (touchscreen != o.touchscreen) {
            return touchscreen < o.touchscreen ? -1 : 1;
        }
        if (input != o.input) {
            return input < o.input ? -1 : 1;
        }
        if (screenLayout != o.screenLayout) {
            return screenLayout < o.screenLayout ? -1 : 1;
        }
        if (screenLayout2 != o.screenLayout2) {
            return screenLayout2 < o.screenLayout2 ? -1 : 1;
        }
        if (uiMode != o.uiMode) {
            return uiMode < o.uiMode ? -1 : 1;
        }
        if (version != o.version) {
            return version < o.version ? -1 : 1;
        }
        return 0;
    }

    int ResTable_config::diff(const ResTable_config &o) const {
        int diffs = 0;
        if (mcc != o.mcc) diffs |= CONFIG_MCC;
        if (mnc != o.mnc) diffs |= CONFIG_MNC;
        if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
        if (density != o.density) diffs |= CONFIG_DENSITY;
        if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
        if (((inputFlags ^ o.inputFlags) & (MASK_KEYSHIDDEN | MASK_NAVHIDDEN)) != 0)
            diffs |= CONFIG_KEYBOARD_HIDDEN;
        if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
        if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
        if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
        if (version != o.version) diffs |= CONFIG_VERSION;
        if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR))
            diffs |= CONFIG_LAYOUTDIR;
        if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR))
            diffs |= CONFIG_SCREEN_LAYOUT;
        if ((screenLayout2 & MASK_SCREENROUND) != (o.screenLayout2 & MASK_SCREENROUND))
            diffs |= CONFIG_SCREEN_ROUND;
        if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
        if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
        if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;

        const int diff = compareLocales(*this, o);
        if (diff) diffs |= CONFIG_LOCALE;

        return diffs;
    }

    int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config &o) const {
        if (locale || o.locale) {
            if (language[0] != o.language[0]) {
                if (!language[0]) return -1;
                if (!o.language[0]) return 1;
            }

            if (country[0] != o.country[0]) {
                if (!country[0]) return -1;
                if (!o.country[0]) return 1;
            }
        }

        // There isn't a well specified "importance" order between variants and
        // scripts. We can't easily tell whether, say "en-Latn-US" is more or less
        // specific than "en-US-POSIX".
        //
        // We therefore arbitrarily decide to give priority to variants over
        // scripts since it seems more useful to do so. We will consider
        // "en-US-POSIX" to be more specific than "en-Latn-US".

        const int score = ((localeScript[0] != '\0' && !localeScriptWasComputed) ? 1 : 0) +
                          ((localeVariant[0] != '\0') ? 2 : 0);

        const int oScore = (o.localeScript[0] != '\0' && !o.localeScriptWasComputed ? 1 : 0) +
                           ((o.localeVariant[0] != '\0') ? 2 : 0);

        return score - oScore;

    }

    bool ResTable_config::isMoreSpecificThan(const ResTable_config &o) const {
        // The order of the following tests defines the importance of one
        // configuration parameter over another.  Those tests first are more
        // important, trumping any values in those following them.
        if (imsi || o.imsi) {
            if (mcc != o.mcc) {
                if (!mcc) return false;
                if (!o.mcc) return true;
            }

            if (mnc != o.mnc) {
                if (!mnc) return false;
                if (!o.mnc) return true;
            }
        }

        if (locale || o.locale) {
            const int diff = isLocaleMoreSpecificThan(o);
            if (diff < 0) {
                return false;
            }

            if (diff > 0) {
                return true;
            }
        }

        if (screenLayout || o.screenLayout) {
            if (((screenLayout ^ o.screenLayout) & MASK_LAYOUTDIR) != 0) {
                if (!(screenLayout & MASK_LAYOUTDIR)) return false;
                if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
            }
        }

        if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
            if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
                if (!smallestScreenWidthDp) return false;
                if (!o.smallestScreenWidthDp) return true;
            }
        }

        if (screenSizeDp || o.screenSizeDp) {
            if (screenWidthDp != o.screenWidthDp) {
                if (!screenWidthDp) return false;
                if (!o.screenWidthDp) return true;
            }

            if (screenHeightDp != o.screenHeightDp) {
                if (!screenHeightDp) return false;
                if (!o.screenHeightDp) return true;
            }
        }

        if (screenLayout || o.screenLayout) {
            if (((screenLayout ^ o.screenLayout) & MASK_SCREENSIZE) != 0) {
                if (!(screenLayout & MASK_SCREENSIZE)) return false;
                if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
            }
            if (((screenLayout ^ o.screenLayout) & MASK_SCREENLONG) != 0) {
                if (!(screenLayout & MASK_SCREENLONG)) return false;
                if (!(o.screenLayout & MASK_SCREENLONG)) return true;
            }
        }

        if (screenLayout2 || o.screenLayout2) {
            if (((screenLayout2 ^ o.screenLayout2) & MASK_SCREENROUND) != 0) {
                if (!(screenLayout2 & MASK_SCREENROUND)) return false;
                if (!(o.screenLayout2 & MASK_SCREENROUND)) return true;
            }
        }

        if (orientation != o.orientation) {
            if (!orientation) return false;
            if (!o.orientation) return true;
        }

        if (uiMode || o.uiMode) {
            if (((uiMode ^ o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
                if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
                if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
            }
            if (((uiMode ^ o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
                if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
                if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
            }
        }

        // density is never 'more specific'
        // as the default just equals 160

        if (touchscreen != o.touchscreen) {
            if (!touchscreen) return false;
            if (!o.touchscreen) return true;
        }

        if (input || o.input) {
            if (((inputFlags ^ o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
                if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
                if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
            }

            if (((inputFlags ^ o.inputFlags) & MASK_NAVHIDDEN) != 0) {
                if (!(inputFlags & MASK_NAVHIDDEN)) return false;
                if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
            }

            if (keyboard != o.keyboard) {
                if (!keyboard) return false;
                if (!o.keyboard) return true;
            }

            if (navigation != o.navigation) {
                if (!navigation) return false;
                if (!o.navigation) return true;
            }
        }

        if (screenSize || o.screenSize) {
            if (screenWidth != o.screenWidth) {
                if (!screenWidth) return false;
                if (!o.screenWidth) return true;
            }

            if (screenHeight != o.screenHeight) {
                if (!screenHeight) return false;
                if (!o.screenHeight) return true;
            }
        }

        if (version || o.version) {
            if (sdkVersion != o.sdkVersion) {
                if (!sdkVersion) return false;
                if (!o.sdkVersion) return true;
            }

            if (minorVersion != o.minorVersion) {
                if (!minorVersion) return false;
                if (!o.minorVersion) return true;
            }
        }
        return false;
    }

    bool ResTable_config::isLocaleBetterThan(const ResTable_config &o,
                                             const ResTable_config *requested) const {
        if (requested->locale == 0) {
            // The request doesn't have a locale, so no resource is better
            // than the other.
            return false;
        }

        if (locale == 0 && o.locale == 0) {
            // The locales parts of both resources are empty, so no one is better
            // than the other.
            return false;
        }

        // Non-matching locales have been filtered out, so both resources
        // match the requested locale.
        //
        // Because of the locale-related checks in match() and the checks, we know
        // that:
        // 1) The resource languages are either empty or match the request;
        // and
        // 2) If the request's script is known, the resource scripts are either
        //    unknown or match the request.

        if (language[0] != o.language[0]) {
            // The languages of the two resources are not the same. We can only
            // assume that one of the two resources matched the request because one
            // doesn't have a language and the other has a matching language.
            //
            // We consider the one that has the language specified a better match.
            //
            // The exception is that we consider no-language resources a better match
            // for US English and similar locales than locales that are a descendant
            // of Internatinal English (en-001), since no-language resources are
            // where the US English resource have traditionally lived for most apps.
            if (requested->language[0] == 'e' && requested->language[1] == 'n') {
                if (requested->country[0] == 'U' && requested->country[1] == 'S') {
                    // For US English itself, we consider a no-locale resource a
                    // better match if the other resource has a country other than
                    // US specified.
                    if (language[0] != '\0') {
                        return country[0] == '\0' || (country[0] == 'U' && country[1] == 'S');
                    } else {
                        return !(o.country[0] == '\0' ||
                                 (o.country[0] == 'U' && o.country[1] == 'S'));
                    }
                } else if (localeDataIsCloseToUsEnglish(requested->country)) {
                    if (language[0] != '\0') {
                        return localeDataIsCloseToUsEnglish(country);
                    } else {
                        return !localeDataIsCloseToUsEnglish(o.country);
                    }
                }
            }
            return (language[0] != '\0');
        }

        // If we are here, both the resources have the same non-empty language as
        // the request.
        //
        // Because the languages are the same, computeScript() always
        // returns a non-empty script for languages it knows about, and we have passed
        // the script checks in match(), the scripts are either all unknown or are
        // all the same. So we can't gain anything by checking the scripts. We need
        // to check the region and variant.

        // See if any of the regions is better than the other
        const int region_comparison = localeDataCompareRegions(
                country, o.country,
                language, requested->localeScript, requested->country);
        if (region_comparison != 0) {
            return (region_comparison > 0);
        }

        // The regions are the same. Try the variant.
        if (requested->localeVariant[0] != '\0'
            && strncmp(localeVariant, requested->localeVariant, sizeof(localeVariant)) == 0) {
            return (strncmp(o.localeVariant, requested->localeVariant, sizeof(localeVariant)) != 0);
        }

        return false;
    }

    bool ResTable_config::isBetterThan(const ResTable_config &o,
                                       const ResTable_config *requested) const {
        if (requested) {
            if (imsi || o.imsi) {
                if ((mcc != o.mcc) && requested->mcc) {
                    return (mcc);
                }

                if ((mnc != o.mnc) && requested->mnc) {
                    return (mnc);
                }
            }

            if (isLocaleBetterThan(o, requested)) {
                return true;
            }

            if (screenLayout || o.screenLayout) {
                if (((screenLayout ^ o.screenLayout) & MASK_LAYOUTDIR) != 0
                    && (requested->screenLayout & MASK_LAYOUTDIR)) {
                    int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
                    int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
                    return (myLayoutDir > oLayoutDir);
                }
            }

            if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
                // The configuration closest to the actual size is best.
                // We assume that larger configs have already been filtered
                // out at this point.  That means we just want the largest one.
                if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
                    return smallestScreenWidthDp > o.smallestScreenWidthDp;
                }
            }

            if (screenSizeDp || o.screenSizeDp) {
                // "Better" is based on the sum of the difference between both
                // width and height from the requested dimensions.  We are
                // assuming the invalid configs (with smaller dimens) have
                // already been filtered.  Note that if a particular dimension
                // is unspecified, we will end up with a large value (the
                // difference between 0 and the requested dimension), which is
                // good since we will prefer a config that has specified a
                // dimension value.
                int myDelta = 0, otherDelta = 0;
                if (requested->screenWidthDp) {
                    myDelta += requested->screenWidthDp - screenWidthDp;
                    otherDelta += requested->screenWidthDp - o.screenWidthDp;
                }
                if (requested->screenHeightDp) {
                    myDelta += requested->screenHeightDp - screenHeightDp;
                    otherDelta += requested->screenHeightDp - o.screenHeightDp;
                }
                if (kDebugTableSuperNoisy) {
                    LOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
                         screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
                         requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
                }
                if (myDelta != otherDelta) {
                    return myDelta < otherDelta;
                }
            }

            if (screenLayout || o.screenLayout) {
                if (((screenLayout ^ o.screenLayout) & MASK_SCREENSIZE) != 0
                    && (requested->screenLayout & MASK_SCREENSIZE)) {
                    // A little backwards compatibility here: undefined is
                    // considered equivalent to normal.  But only if the
                    // requested size is at least normal; otherwise, small
                    // is better than the default.
                    int mySL = (screenLayout & MASK_SCREENSIZE);
                    int oSL = (o.screenLayout & MASK_SCREENSIZE);
                    int fixedMySL = mySL;
                    int fixedOSL = oSL;
                    if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
                        if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
                        if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
                    }
                    // For screen size, the best match is the one that is
                    // closest to the requested screen size, but not over
                    // (the not over part is dealt with in match() below).
                    if (fixedMySL == fixedOSL) {
                        // If the two are the same, but 'this' is actually
                        // undefined, then the other is really a better match.
                        if (mySL == 0) return false;
                        return true;
                    }
                    if (fixedMySL != fixedOSL) {
                        return fixedMySL > fixedOSL;
                    }
                }
                if (((screenLayout ^ o.screenLayout) & MASK_SCREENLONG) != 0
                    && (requested->screenLayout & MASK_SCREENLONG)) {
                    return (screenLayout & MASK_SCREENLONG);
                }
            }

            if (screenLayout2 || o.screenLayout2) {
                if (((screenLayout2 ^ o.screenLayout2) & MASK_SCREENROUND) != 0 &&
                    (requested->screenLayout2 & MASK_SCREENROUND)) {
                    return screenLayout2 & MASK_SCREENROUND;
                }
            }

            if ((orientation != o.orientation) && requested->orientation) {
                return (orientation);
            }

            if (uiMode || o.uiMode) {
                if (((uiMode ^ o.uiMode) & MASK_UI_MODE_TYPE) != 0
                    && (requested->uiMode & MASK_UI_MODE_TYPE)) {
                    return (uiMode & MASK_UI_MODE_TYPE);
                }
                if (((uiMode ^ o.uiMode) & MASK_UI_MODE_NIGHT) != 0
                    && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
                    return (uiMode & MASK_UI_MODE_NIGHT);
                }
            }

            if (screenType || o.screenType) {
                if (density != o.density) {
                    // Use the system default density (DENSITY_MEDIUM, 160dpi) if none specified.
                    const int thisDensity = density ? density : int(
                            ResTable_config::DENSITY_MEDIUM);
                    const int otherDensity = o.density ? o.density : int(
                            ResTable_config::DENSITY_MEDIUM);

                    // We always prefer DENSITY_ANY over scaling a density bucket.
                    if (thisDensity == ResTable_config::DENSITY_ANY) {
                        return true;
                    } else if (otherDensity == ResTable_config::DENSITY_ANY) {
                        return false;
                    }

                    int requestedDensity = requested->density;
                    if (requested->density == 0 ||
                        requested->density == ResTable_config::DENSITY_ANY) {
                        requestedDensity = ResTable_config::DENSITY_MEDIUM;
                    }

                    // DENSITY_ANY is now dealt with. We should look to
                    // pick a density bucket and potentially scale it.
                    // Any density is potentially useful
                    // because the system will scale it.  Scaling down
                    // is generally better than scaling up.
                    int h = thisDensity;
                    int l = otherDensity;
                    bool bImBigger = true;
                    if (l > h) {
                        int t = h;
                        h = l;
                        l = t;
                        bImBigger = false;
                    }

                    if (requestedDensity >= h) {
                        // requested value higher than both l and h, give h
                        return bImBigger;
                    }
                    if (l >= requestedDensity) {
                        // requested value lower than both l and h, give l
                        return !bImBigger;
                    }
                    // saying that scaling down is 2x better than up
                    if (((2 * l) - requestedDensity) * h > requestedDensity * requestedDensity) {
                        return !bImBigger;
                    } else {
                        return bImBigger;
                    }
                }

                if ((touchscreen != o.touchscreen) && requested->touchscreen) {
                    return (touchscreen);
                }
            }

            if (input || o.input) {
                const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
                const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
                if (keysHidden != oKeysHidden) {
                    const int reqKeysHidden =
                            requested->inputFlags & MASK_KEYSHIDDEN;
                    if (reqKeysHidden) {

                        if (!keysHidden) return false;
                        if (!oKeysHidden) return true;
                        // For compatibility, we count KEYSHIDDEN_NO as being
                        // the same as KEYSHIDDEN_SOFT.  Here we disambiguate
                        // these by making an exact match more specific.
                        if (reqKeysHidden == keysHidden) return true;
                        if (reqKeysHidden == oKeysHidden) return false;
                    }
                }

                const int navHidden = inputFlags & MASK_NAVHIDDEN;
                const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
                if (navHidden != oNavHidden) {
                    const int reqNavHidden =
                            requested->inputFlags & MASK_NAVHIDDEN;
                    if (reqNavHidden) {

                        if (!navHidden) return false;
                        if (!oNavHidden) return true;
                    }
                }

                if ((keyboard != o.keyboard) && requested->keyboard) {
                    return (keyboard);
                }

                if ((navigation != o.navigation) && requested->navigation) {
                    return (navigation);
                }
            }

            if (screenSize || o.screenSize) {
                // "Better" is based on the sum of the difference between both
                // width and height from the requested dimensions.  We are
                // assuming the invalid configs (with smaller sizes) have
                // already been filtered.  Note that if a particular dimension
                // is unspecified, we will end up with a large value (the
                // difference between 0 and the requested dimension), which is
                // good since we will prefer a config that has specified a
                // size value.
                int myDelta = 0, otherDelta = 0;
                if (requested->screenWidth) {
                    myDelta += requested->screenWidth - screenWidth;
                    otherDelta += requested->screenWidth - o.screenWidth;
                }
                if (requested->screenHeight) {
                    myDelta += requested->screenHeight - screenHeight;
                    otherDelta += requested->screenHeight - o.screenHeight;
                }
                if (myDelta != otherDelta) {
                    return myDelta < otherDelta;
                }
            }

            if (version || o.version) {
                if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
                    return (sdkVersion > o.sdkVersion);
                }

                if ((minorVersion != o.minorVersion) &&
                    requested->minorVersion) {
                    return (minorVersion);
                }
            }

            return false;
        }
        return isMoreSpecificThan(o);
    }

    bool ResTable_config::match(const ResTable_config &settings) const {
        if (imsi != 0) {
            if (mcc != 0 && mcc != settings.mcc) {
                return false;
            }
            if (mnc != 0 && mnc != settings.mnc) {
                return false;
            }
        }
        if (locale != 0) {
            // Don't consider country and variants when deciding matches.
            // (Theoretically, the variant can also affect the script. For
            // example, "ar-alalc97" probably implies the Latin script, but since
            // CLDR doesn't support getting likely scripts for that, we'll assume
            // the variant doesn't change the script.)
            //
            // If two configs differ only in their country and variant,
            // they can be weeded out in the isMoreSpecificThan test.
            if (language[0] != settings.language[0] || language[1] != settings.language[1]) {
                return false;
            }

            // For backward compatibility and supporting private-use locales, we
            // fall back to old behavior if we couldn't determine the script for
            // either of the desired locale or the provided locale. But if we could determine
            // the scripts, they should be the same for the locales to match.
            bool countriesMustMatch = false;
            char computed_script[4];
            const char *script;
            if (settings.localeScript[0] == '\0') { // could not determine the request's script
                countriesMustMatch = true;
            } else {
                if (localeScript[0] == '\0' && !localeScriptWasComputed) {
                    // script was not provided or computed, so we try to compute it
                    localeDataComputeScript(computed_script, language, country);
                    if (computed_script[0] == '\0') { // we could not compute the script
                        countriesMustMatch = true;
                    } else {
                        script = computed_script;
                    }
                } else { // script was provided, so just use it
                    script = localeScript;
                }
            }

            if (countriesMustMatch) {
                if (country[0] != '\0'
                    && (country[0] != settings.country[0]
                        || country[1] != settings.country[1])) {
                    return false;
                }
            } else {
                if (memcmp(script, settings.localeScript, sizeof(settings.localeScript)) != 0) {
                    return false;
                }
            }
        }

        if (screenConfig != 0) {
            const int layoutDir = screenLayout & MASK_LAYOUTDIR;
            const int setLayoutDir = settings.screenLayout & MASK_LAYOUTDIR;
            if (layoutDir != 0 && layoutDir != setLayoutDir) {
                return false;
            }

            const int screenSize = screenLayout & MASK_SCREENSIZE;
            const int setScreenSize = settings.screenLayout & MASK_SCREENSIZE;
            // Any screen sizes for larger screens than the setting do not
            // match.
            if (screenSize != 0 && screenSize > setScreenSize) {
                return false;
            }

            const int screenLong = screenLayout & MASK_SCREENLONG;
            const int setScreenLong = settings.screenLayout & MASK_SCREENLONG;
            if (screenLong != 0 && screenLong != setScreenLong) {
                return false;
            }

            const int uiModeType = uiMode & MASK_UI_MODE_TYPE;
            const int setUiModeType = settings.uiMode & MASK_UI_MODE_TYPE;
            if (uiModeType != 0 && uiModeType != setUiModeType) {
                return false;
            }

            const int uiModeNight = uiMode & MASK_UI_MODE_NIGHT;
            const int setUiModeNight = settings.uiMode & MASK_UI_MODE_NIGHT;
            if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
                return false;
            }

            if (smallestScreenWidthDp != 0
                && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
                return false;
            }
        }

        if (screenConfig2 != 0) {
            const int screenRound = screenLayout2 & MASK_SCREENROUND;
            const int setScreenRound = settings.screenLayout2 & MASK_SCREENROUND;
            if (screenRound != 0 && screenRound != setScreenRound) {
                return false;
            }
        }

        if (screenSizeDp != 0) {
            if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
                if (kDebugTableSuperNoisy) {
                    LOGI("Filtering out width %d in requested %d", screenWidthDp,
                         settings.screenWidthDp);
                }
                return false;
            }
            if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
                if (kDebugTableSuperNoisy) {
                    LOGI("Filtering out height %d in requested %d", screenHeightDp,
                         settings.screenHeightDp);
                }
                return false;
            }
        }
        if (screenType != 0) {
            if (orientation != 0 && orientation != settings.orientation) {
                return false;
            }
            // density always matches - we can scale it.  See isBetterThan
            if (touchscreen != 0 && touchscreen != settings.touchscreen) {
                return false;
            }
        }
        if (input != 0) {
            const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
            const int setKeysHidden = settings.inputFlags & MASK_KEYSHIDDEN;
            if (keysHidden != 0 && keysHidden != setKeysHidden) {
                // For compatibility, we count a request for KEYSHIDDEN_NO as also
                // matching the more recent KEYSHIDDEN_SOFT.  Basically
                // KEYSHIDDEN_NO means there is some kind of keyboard available.
                if (kDebugTableSuperNoisy) {
                    LOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
                }
                if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
                    if (kDebugTableSuperNoisy) {
                        LOGI("No match!");
                    }
                    return false;
                }
            }
            const int navHidden = inputFlags & MASK_NAVHIDDEN;
            const int setNavHidden = settings.inputFlags & MASK_NAVHIDDEN;
            if (navHidden != 0 && navHidden != setNavHidden) {
                return false;
            }
            if (keyboard != 0 && keyboard != settings.keyboard) {
                return false;
            }
            if (navigation != 0 && navigation != settings.navigation) {
                return false;
            }
        }
        if (screenSize != 0) {
            if (screenWidth != 0 && screenWidth > settings.screenWidth) {
                return false;
            }
            if (screenHeight != 0 && screenHeight > settings.screenHeight) {
                return false;
            }
        }
        if (version != 0) {
            if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
                return false;
            }
            if (minorVersion != 0 && minorVersion != settings.minorVersion) {
                return false;
            }
        }
        return true;
    }

    void ResTable_config::appendDirLocale(String8 &out) const {
        if (!language[0]) {
            return;
        }
        const bool scriptWasProvided = localeScript[0] != '\0' && !localeScriptWasComputed;
        if (!scriptWasProvided && !localeVariant[0]) {
            // Legacy format.
            if (out.size() > 0) {
                out.append("-");
            }

            char buf[4];
            size_t len = unpackLanguage(buf);
            out.append(buf, len);

            if (country[0]) {
                out.append("-r");
                len = unpackRegion(buf);
                out.append(buf, len);
            }
            return;
        }

        // We are writing the modified BCP 47 tag.
        // It starts with 'b+' and uses '+' as a separator.

        if (out.size() > 0) {
            out.append("-");
        }
        out.append("b+");

        char buf[4];
        size_t len = unpackLanguage(buf);
        out.append(buf, len);

        if (scriptWasProvided) {
            out.append("+");
            out.append(localeScript, sizeof(localeScript));
        }

        if (country[0]) {
            out.append("+");
            len = unpackRegion(buf);
            out.append(buf, len);
        }

        if (localeVariant[0]) {
            out.append("+");
            out.append(localeVariant, strnlen(localeVariant, sizeof(localeVariant)));
        }
    }

    void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const {
        memset(str, 0, RESTABLE_MAX_LOCALE_LEN);

        // This represents the "any" locale value, which has traditionally been
        // represented by the empty string.
        if (!language[0] && !country[0]) {
            return;
        }

        size_t charsWritten = 0;
        if (language[0]) {
            charsWritten += unpackLanguage(str);
        }

        if (localeScript[0] && !localeScriptWasComputed) {
            if (charsWritten) {
                str[charsWritten++] = '-';
            }
            memcpy(str + charsWritten, localeScript, sizeof(localeScript));
            charsWritten += sizeof(localeScript);
        }

        if (country[0]) {
            if (charsWritten) {
                str[charsWritten++] = '-';
            }
            charsWritten += unpackRegion(str + charsWritten);
        }

        if (localeVariant[0]) {
            if (charsWritten) {
                str[charsWritten++] = '-';
            }
            memcpy(str + charsWritten, localeVariant, sizeof(localeVariant));
        }
    }

/* static */ inline bool assignLocaleComponent(ResTable_config *config,
                                               const char *start, size_t size) {

        switch (size) {
            case 0:
                return false;
            case 2:
            case 3:
                config->language[0] ? config->packRegion(start) : config->packLanguage(start);
                break;
            case 4:
                if ('0' <= start[0] && start[0] <= '9') {
                    // this is a variant, so fall through
                } else {
                    config->localeScript[0] = toupper(start[0]);
                    for (size_t i = 1; i < 4; ++i) {
                        config->localeScript[i] = tolower(start[i]);
                    }
                    break;
                }
            case 5:
            case 6:
            case 7:
            case 8:
                for (size_t i = 0; i < size; ++i) {
                    config->localeVariant[i] = tolower(start[i]);
                }
                break;
            default:
                return false;
        }

        return true;
    }

    void ResTable_config::setBcp47Locale(const char *in) {
        locale = 0;
        memset(localeScript, 0, sizeof(localeScript));
        memset(localeVariant, 0, sizeof(localeVariant));

        const char *separator = in;
        const char *start = in;
        while ((separator = strchr(start, '-')) != NULL) {
            const size_t size = separator - start;
            if (!assignLocaleComponent(this, start, size)) {
                fprintf(stderr, "Invalid BCP-47 locale string: %s", in);
            }

            start = (separator + 1);
        }

        const size_t size = in + strlen(in) - start;
        assignLocaleComponent(this, start, size);
        localeScriptWasComputed = (localeScript[0] == '\0');
        if (localeScriptWasComputed) {
            computeScript();
        }
    }

    String8 ResTable_config::toString() const {
        String8 res;

        if (mcc != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("mcc%d", dtohs(mcc));
        }
        if (mnc != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("mnc%d", dtohs(mnc));
        }

        appendDirLocale(res);

        if ((screenLayout & MASK_LAYOUTDIR) != 0) {
            if (res.size() > 0) res.append("-");
            switch (screenLayout & ResTable_config::MASK_LAYOUTDIR) {
                case ResTable_config::LAYOUTDIR_LTR:
                    res.append("ldltr");
                    break;
                case ResTable_config::LAYOUTDIR_RTL:
                    res.append("ldrtl");
                    break;
                default:
                    res.appendFormat("layoutDir=%d",
                                     dtohs(screenLayout & ResTable_config::MASK_LAYOUTDIR));
                    break;
            }
        }
        if (smallestScreenWidthDp != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
        }
        if (screenWidthDp != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("w%ddp", dtohs(screenWidthDp));
        }
        if (screenHeightDp != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("h%ddp", dtohs(screenHeightDp));
        }
        if ((screenLayout & MASK_SCREENSIZE) != SCREENSIZE_ANY) {
            if (res.size() > 0) res.append("-");
            switch (screenLayout & ResTable_config::MASK_SCREENSIZE) {
                case ResTable_config::SCREENSIZE_SMALL:
                    res.append("small");
                    break;
                case ResTable_config::SCREENSIZE_NORMAL:
                    res.append("normal");
                    break;
                case ResTable_config::SCREENSIZE_LARGE:
                    res.append("large");
                    break;
                case ResTable_config::SCREENSIZE_XLARGE:
                    res.append("xlarge");
                    break;
                default:
                    res.appendFormat("screenLayoutSize=%d",
                                     dtohs(screenLayout & ResTable_config::MASK_SCREENSIZE));
                    break;
            }
        }
        if ((screenLayout & MASK_SCREENLONG) != 0) {
            if (res.size() > 0) res.append("-");
            switch (screenLayout & ResTable_config::MASK_SCREENLONG) {
                case ResTable_config::SCREENLONG_NO:
                    res.append("notlong");
                    break;
                case ResTable_config::SCREENLONG_YES:
                    res.append("long");
                    break;
                default:
                    res.appendFormat("screenLayoutLong=%d",
                                     dtohs(screenLayout & ResTable_config::MASK_SCREENLONG));
                    break;
            }
        }
        if ((screenLayout2 & MASK_SCREENROUND) != 0) {
            if (res.size() > 0) res.append("-");
            switch (screenLayout2 & MASK_SCREENROUND) {
                case SCREENROUND_NO:
                    res.append("notround");
                    break;
                case SCREENROUND_YES:
                    res.append("round");
                    break;
                default:
                    res.appendFormat("screenRound=%d", dtohs(screenLayout2 & MASK_SCREENROUND));
                    break;
            }
        }
        if (orientation != ORIENTATION_ANY) {
            if (res.size() > 0) res.append("-");
            switch (orientation) {
                case ResTable_config::ORIENTATION_PORT:
                    res.append("port");
                    break;
                case ResTable_config::ORIENTATION_LAND:
                    res.append("land");
                    break;
                case ResTable_config::ORIENTATION_SQUARE:
                    res.append("square");
                    break;
                default:
                    res.appendFormat("orientation=%d", dtohs(orientation));
                    break;
            }
        }
        if ((uiMode & MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
            if (res.size() > 0) res.append("-");
            switch (uiMode & ResTable_config::MASK_UI_MODE_TYPE) {
                case ResTable_config::UI_MODE_TYPE_DESK:
                    res.append("desk");
                    break;
                case ResTable_config::UI_MODE_TYPE_CAR:
                    res.append("car");
                    break;
                case ResTable_config::UI_MODE_TYPE_TELEVISION:
                    res.append("television");
                    break;
                case ResTable_config::UI_MODE_TYPE_APPLIANCE:
                    res.append("appliance");
                    break;
                case ResTable_config::UI_MODE_TYPE_WATCH:
                    res.append("watch");
                    break;
                default:
                    res.appendFormat("uiModeType=%d",
                                     dtohs(screenLayout & ResTable_config::MASK_UI_MODE_TYPE));
                    break;
            }
        }
        if ((uiMode & MASK_UI_MODE_NIGHT) != 0) {
            if (res.size() > 0) res.append("-");
            switch (uiMode & ResTable_config::MASK_UI_MODE_NIGHT) {
                case ResTable_config::UI_MODE_NIGHT_NO:
                    res.append("notnight");
                    break;
                case ResTable_config::UI_MODE_NIGHT_YES:
                    res.append("night");
                    break;
                default:
                    res.appendFormat("uiModeNight=%d",
                                     dtohs(uiMode & MASK_UI_MODE_NIGHT));
                    break;
            }
        }
        if (density != DENSITY_DEFAULT) {
            if (res.size() > 0) res.append("-");
            switch (density) {
                case ResTable_config::DENSITY_LOW:
                    res.append("ldpi");
                    break;
                case ResTable_config::DENSITY_MEDIUM:
                    res.append("mdpi");
                    break;
                case ResTable_config::DENSITY_TV:
                    res.append("tvdpi");
                    break;
                case ResTable_config::DENSITY_HIGH:
                    res.append("hdpi");
                    break;
                case ResTable_config::DENSITY_XHIGH:
                    res.append("xhdpi");
                    break;
                case ResTable_config::DENSITY_XXHIGH:
                    res.append("xxhdpi");
                    break;
                case ResTable_config::DENSITY_XXXHIGH:
                    res.append("xxxhdpi");
                    break;
                case ResTable_config::DENSITY_NONE:
                    res.append("nodpi");
                    break;
                case ResTable_config::DENSITY_ANY:
                    res.append("anydpi");
                    break;
                default:
                    res.appendFormat("%ddpi", dtohs(density));
                    break;
            }
        }
        if (touchscreen != TOUCHSCREEN_ANY) {
            if (res.size() > 0) res.append("-");
            switch (touchscreen) {
                case ResTable_config::TOUCHSCREEN_NOTOUCH:
                    res.append("notouch");
                    break;
                case ResTable_config::TOUCHSCREEN_FINGER:
                    res.append("finger");
                    break;
                case ResTable_config::TOUCHSCREEN_STYLUS:
                    res.append("stylus");
                    break;
                default:
                    res.appendFormat("touchscreen=%d", dtohs(touchscreen));
                    break;
            }
        }
        if ((inputFlags & MASK_KEYSHIDDEN) != 0) {
            if (res.size() > 0) res.append("-");
            switch (inputFlags & MASK_KEYSHIDDEN) {
                case ResTable_config::KEYSHIDDEN_NO:
                    res.append("keysexposed");
                    break;
                case ResTable_config::KEYSHIDDEN_YES:
                    res.append("keyshidden");
                    break;
                case ResTable_config::KEYSHIDDEN_SOFT:
                    res.append("keyssoft");
                    break;
            }
        }
        if (keyboard != KEYBOARD_ANY) {
            if (res.size() > 0) res.append("-");
            switch (keyboard) {
                case ResTable_config::KEYBOARD_NOKEYS:
                    res.append("nokeys");
                    break;
                case ResTable_config::KEYBOARD_QWERTY:
                    res.append("qwerty");
                    break;
                case ResTable_config::KEYBOARD_12KEY:
                    res.append("12key");
                    break;
                default:
                    res.appendFormat("keyboard=%d", dtohs(keyboard));
                    break;
            }
        }
        if ((inputFlags & MASK_NAVHIDDEN) != 0) {
            if (res.size() > 0) res.append("-");
            switch (inputFlags & MASK_NAVHIDDEN) {
                case ResTable_config::NAVHIDDEN_NO:
                    res.append("navexposed");
                    break;
                case ResTable_config::NAVHIDDEN_YES:
                    res.append("navhidden");
                    break;
                default:
                    res.appendFormat("inputFlagsNavHidden=%d",
                                     dtohs(inputFlags & MASK_NAVHIDDEN));
                    break;
            }
        }
        if (navigation != NAVIGATION_ANY) {
            if (res.size() > 0) res.append("-");
            switch (navigation) {
                case ResTable_config::NAVIGATION_NONAV:
                    res.append("nonav");
                    break;
                case ResTable_config::NAVIGATION_DPAD:
                    res.append("dpad");
                    break;
                case ResTable_config::NAVIGATION_TRACKBALL:
                    res.append("trackball");
                    break;
                case ResTable_config::NAVIGATION_WHEEL:
                    res.append("wheel");
                    break;
                default:
                    res.appendFormat("navigation=%d", dtohs(navigation));
                    break;
            }
        }
        if (screenSize != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
        }
        if (version != 0) {
            if (res.size() > 0) res.append("-");
            res.appendFormat("v%d", dtohs(sdkVersion));
            if (minorVersion != 0) {
                res.appendFormat(".%d", dtohs(minorVersion));
            }
        }

        return res;
    }

// --------------------------------------------------------------------
// --------------------------------------------------------------------
// --------------------------------------------------------------------

    struct ResTable::Header {
        explicit Header(ResTable *_owner) : owner(_owner), ownedData(NULL), header(NULL),
                                            resourceIDMap(NULL), resourceIDMapSize(0) {}

        ~Header() {
            free(resourceIDMap);
        }

        const ResTable *const owner;
        void *ownedData;
        const ResTable_header *header;
        size_t size;
        const uint8_t *dataEnd;
        size_t index;
        int32_t cookie;

        ResStringPool values;
        uint32_t *resourceIDMap;
        size_t resourceIDMapSize;
    };

    struct ResTable::Entry {
        ResTable_config config;
        const ResTable_entry *entry;
        const ResTable_type *type;
        uint32_t specFlags;
        const Package *package;

        StringPoolRef typeStr;
        StringPoolRef keyStr;
    };

    struct ResTable::Type {
        Type(const Header *_header, const Package *_package, size_t count)
                : header(_header), package(_package), entryCount(count),
                  typeSpec(NULL), typeSpecFlags(NULL) {}

        const Header *const header;
        const Package *const package;
        const size_t entryCount;
        const ResTable_typeSpec *typeSpec;
        const uint32_t *typeSpecFlags;
        IdmapEntries idmapEntries;
        Vector<const ResTable_type *> configs;
    };

    struct ResTable::Package {
        Package(ResTable *_owner, const Header *_header, const ResTable_package *_package)
                : owner(_owner), header(_header), package(_package), typeIdOffset(0) {
            if (dtohs(package->header.headerSize) == sizeof(*package)) {
                // The package structure is the same size as the definition.
                // This means it contains the typeIdOffset field.
                typeIdOffset = package->typeIdOffset;
            }
        }

        const ResTable *const owner;
        const Header *const header;
        const ResTable_package *const package;

        ResStringPool typeStrings;
        ResStringPool keyStrings;

        size_t typeIdOffset;
    };

// A group of objects describing a particular resource package.
// The first in 'package' is always the root object (from the resource
// table that defined the package); the ones after are skins on top of it.
    struct ResTable::PackageGroup {
        PackageGroup(
                ResTable *_owner, const String16 &_name, uint32_t _id,
                bool appAsLib, bool _isSystemAsset)
                : owner(_owner), name(_name), id(_id), largestTypeId(0),
                  dynamicRefTable(static_cast<uint8_t>(_id), appAsLib),
                  isSystemAsset(_isSystemAsset) {}

        ~PackageGroup() {
            clearBagCache();
            const size_t numTypes = types.size();
            for (size_t i = 0; i < numTypes; i++) {
                TypeList &typeList = types.editItemAt(i);
                const size_t numInnerTypes = typeList.size();
                for (size_t j = 0; j < numInnerTypes; j++) {
                    if (typeList[j]->package->owner == owner) {
                        delete typeList[j];
                    }
                }
                typeList.clear();
            }

            const size_t N = packages.size();
            for (size_t i = 0; i < N; i++) {
                Package *pkg = packages[i];
                if (pkg->owner == owner) {
                    delete pkg;
                }
            }
        }

        /**
     * Clear all cache related data that depends on parameters/configuration.
     * This includes the bag caches and filtered types.
     */
        void clearBagCache() {
            for (size_t i = 0; i < typeCacheEntries.size(); i++) {
                if (kDebugTableNoisy) {
                    printf("type=%zu\n", i);
                }
                const TypeList &typeList = types[i];
                if (!typeList.isEmpty()) {
                    TypeCacheEntry &cacheEntry = typeCacheEntries.editItemAt(i);

                    // Reset the filtered configurations.
                    cacheEntry.filteredConfigs.clear();

                    bag_set **typeBags = cacheEntry.cachedBags;
                    if (kDebugTableNoisy) {
                        printf("typeBags=%p\n", typeBags);
                    }

                    if (typeBags) {
                        const size_t N = typeList[0]->entryCount;
                        if (kDebugTableNoisy) {
                            printf("type->entryCount=%zu\n", N);
                        }
                        for (size_t j = 0; j < N; j++) {
                            if (typeBags[j] && typeBags[j] != (bag_set *) 0xFFFFFFFF) {
                                free(typeBags[j]);
                            }
                        }
                        free(typeBags);
                        cacheEntry.cachedBags = NULL;
                    }
                }
            }
        }

        ssize_t findType16(const char16_t *type, size_t len) const {
            const size_t N = packages.size();
            for (size_t i = 0; i < N; i++) {
                ssize_t index = packages[i]->typeStrings.indexOfString(type, len);
                if (index >= 0) {
                    return index + packages[i]->typeIdOffset;
                }
            }
            return -1;
        }

        const ResTable *const owner;
        String16 const name;
        uint32_t const id;

        // This is mainly used to keep track of the loaded packages
        // and to clean them up properly. Accessing resources happens from
        // the 'types' array.
        Vector<Package *> packages;

        ByteBucketArray<TypeList> types;

        uint8_t largestTypeId;

        // Cached objects dependent on the parameters/configuration of this ResTable.
        // Gets cleared whenever the parameters/configuration changes.
        // These are stored here in a parallel structure because the data in `types` may
        // be shared by other ResTable's (framework resources are shared this way).
        ByteBucketArray<TypeCacheEntry> typeCacheEntries;

        // The table mapping dynamic references to resolved references for
        // this package group.
        // TODO: We may be able to support dynamic references in overlays
        // by having these tables in a per-package scope rather than
        // per-package-group.
        DynamicRefTable dynamicRefTable;

        // If the package group comes from a system asset. Used in
        // determining non-system locales.
        const bool isSystemAsset;
    };

    ResTable::Theme::Theme(const ResTable &table)
            : mTable(table), mTypeSpecFlags(0) {
        memset(mPackages, 0, sizeof(mPackages));
    }

    ResTable::Theme::~Theme() {
        for (size_t i = 0; i < Res_MAXPACKAGE; i++) {
            package_info *pi = mPackages[i];
            if (pi != NULL) {
                free_package(pi);
            }
        }
    }

    void ResTable::Theme::free_package(package_info *pi) {
        for (size_t j = 0; j <= Res_MAXTYPE; j++) {
            theme_entry *te = pi->types[j].entries;
            if (te != NULL) {
                free(te);
            }
        }
        free(pi);
    }

    ResTable::Theme::package_info *ResTable::Theme::copy_package(package_info *pi) {
        package_info *newpi = (package_info *) malloc(sizeof(package_info));
        for (size_t j = 0; j <= Res_MAXTYPE; j++) {
            size_t cnt = pi->types[j].numEntries;
            newpi->types[j].numEntries = cnt;
            theme_entry *te = pi->types[j].entries;
            size_t cnt_max = SIZE_MAX / sizeof(theme_entry);
            if (te != NULL && (cnt < 0xFFFFFFFF - 1) && (cnt < cnt_max)) {
                theme_entry *newte = (theme_entry *) malloc(cnt * sizeof(theme_entry));
                newpi->types[j].entries = newte;
                memcpy(newte, te, cnt * sizeof(theme_entry));
            } else {
                newpi->types[j].entries = NULL;
            }
        }
        return newpi;
    }

    status_t ResTable::Theme::applyStyle(uint32_t resID, bool force) {
        const bag_entry *bag;
        uint32_t bagTypeSpecFlags = 0;
        mTable.lock();
        const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
        if (kDebugTableNoisy) {
            ALOGV("Applying style 0x%08x to theme %p, count=%zu", resID, this, N);
        }
        if (N < 0) {
            mTable.unlock();
            return N;
        }

        mTypeSpecFlags |= bagTypeSpecFlags;

        uint32_t curPackage = 0xffffffff;
        ssize_t curPackageIndex = 0;
        package_info *curPI = NULL;
        uint32_t curType = 0xffffffff;
        size_t numEntries = 0;
        theme_entry *curEntries = NULL;

        const bag_entry *end = bag + N;
        while (bag < end) {
            const uint32_t attrRes = bag->map.name.ident;
            const uint32_t p = Res_GETPACKAGE(attrRes);
            const uint32_t t = Res_GETTYPE(attrRes);
            const uint32_t e = Res_GETENTRY(attrRes);

            if (curPackage != p) {
                const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
                if (pidx < 0) {
                    ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
                    bag++;
                    continue;
                }
                curPackage = p;
                curPackageIndex = pidx;
                curPI = mPackages[pidx];
                if (curPI == NULL) {
                    curPI = (package_info *) malloc(sizeof(package_info));
                    memset(curPI, 0, sizeof(*curPI));
                    mPackages[pidx] = curPI;
                }
                curType = 0xffffffff;
            }
            if (curType != t) {
                if (t > Res_MAXTYPE) {
                    ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
                    bag++;
                    continue;
                }
                curType = t;
                curEntries = curPI->types[t].entries;
                if (curEntries == NULL) {
                    PackageGroup *const grp = mTable.mPackageGroups[curPackageIndex];
                    const TypeList &typeList = grp->types[t];
                    size_t cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount;
                    size_t cnt_max = SIZE_MAX / sizeof(theme_entry);
                    size_t buff_size = (cnt < cnt_max && cnt < 0xFFFFFFFF - 1) ?
                                       cnt * sizeof(theme_entry) : 0;
                    curEntries = (theme_entry *) malloc(buff_size);
                    memset(curEntries, Res_value::TYPE_NULL, buff_size);
                    curPI->types[t].numEntries = cnt;
                    curPI->types[t].entries = curEntries;
                }
                numEntries = curPI->types[t].numEntries;
            }
            if (e >= numEntries) {
                ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
                bag++;
                continue;
            }
            theme_entry *curEntry = curEntries + e;
            if (kDebugTableNoisy) {
                ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
                      attrRes, bag->map.value.dataType, bag->map.value.data,
                      curEntry->value.dataType);
            }
            if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
                curEntry->stringBlock = bag->stringBlock;
                curEntry->typeSpecFlags |= bagTypeSpecFlags;
                curEntry->value = bag->map.value;
            }

            bag++;
        }

        mTable.unlock();

        if (kDebugTableTheme) {
            LOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
            dumpToLog();
        }

        return NO_ERROR;
    }

    status_t ResTable::Theme::setTo(const Theme &other) {
        if (kDebugTableTheme) {
            LOGI("Setting theme %p from theme %p...\n", this, &other);
            dumpToLog();
            other.dumpToLog();
        }

        if (&mTable == &other.mTable) {
            for (size_t i = 0; i < Res_MAXPACKAGE; i++) {
                if (mPackages[i] != NULL) {
                    free_package(mPackages[i]);
                }
                if (other.mPackages[i] != NULL) {
                    mPackages[i] = copy_package(other.mPackages[i]);
                } else {
                    mPackages[i] = NULL;
                }
            }
        } else {
            // @todo: need to really implement this, not just copy
            // the system package (which is still wrong because it isn't
            // fixing up resource references).
            for (size_t i = 0; i < Res_MAXPACKAGE; i++) {
                if (mPackages[i] != NULL) {
                    free_package(mPackages[i]);
                }
                if (i == 0 && other.mPackages[i] != NULL) {
                    mPackages[i] = copy_package(other.mPackages[i]);
                } else {
                    mPackages[i] = NULL;
                }
            }
        }

        mTypeSpecFlags = other.mTypeSpecFlags;

        if (kDebugTableTheme) {
            LOGI("Final theme:");
            dumpToLog();
        }

        return NO_ERROR;
    }

    status_t ResTable::Theme::clear() {
        if (kDebugTableTheme) {
            LOGI("Clearing theme %p...\n", this);
            dumpToLog();
        }

        for (size_t i = 0; i < Res_MAXPACKAGE; i++) {
            if (mPackages[i] != NULL) {
                free_package(mPackages[i]);
                mPackages[i] = NULL;
            }
        }

        mTypeSpecFlags = 0;

        if (kDebugTableTheme) {
            LOGI("Final theme:");
            dumpToLog();
        }

        return NO_ERROR;
    }

    ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value *outValue,
                                          uint32_t *outTypeSpecFlags) const {
        int cnt = 20;

        if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;

        do {
            const ssize_t p = mTable.getResourcePackageIndex(resID);
            const uint32_t t = Res_GETTYPE(resID);
            const uint32_t e = Res_GETENTRY(resID);

            if (kDebugTableTheme) {
                LOGI("Looking up attr 0x%08x in theme %p", resID, this);
            }

            if (p >= 0) {
                const package_info *const pi = mPackages[p];
                if (kDebugTableTheme) {
                    LOGI("Found package: %p", pi);
                }
                if (pi != NULL) {
                    if (kDebugTableTheme) {
                        LOGI("Desired type index is %u in avail %zu", t, Res_MAXTYPE + 1);
                    }
                    if (t <= Res_MAXTYPE) {
                        const type_info &ti = pi->types[t];
                        if (kDebugTableTheme) {
                            LOGI("Desired entry index is %u in avail %zu", e, ti.numEntries);
                        }
                        if (e < ti.numEntries) {
                            const theme_entry &te = ti.entries[e];
                            if (outTypeSpecFlags != NULL) {
                                *outTypeSpecFlags |= te.typeSpecFlags;
                            }
                            if (kDebugTableTheme) {
                                LOGI("Theme value: type=0x%x, data=0x%08x",
                                     te.value.dataType, te.value.data);
                            }
                            const uint8_t type = te.value.dataType;
                            if (type == Res_value::TYPE_ATTRIBUTE) {
                                if (cnt > 0) {
                                    cnt--;
                                    resID = te.value.data;
                                    continue;
                                }
                                ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
                                return BAD_INDEX;
                            } else if (type != Res_value::TYPE_NULL) {
                                *outValue = te.value;
                                return te.stringBlock;
                            }
                            return BAD_INDEX;
                        }
                    }
                }
            }
            break;

        } while (true);

        return BAD_INDEX;
    }

    ssize_t ResTable::Theme::resolveAttributeReference(Res_value *inOutValue,
                                                       ssize_t blockIndex, uint32_t *outLastRef,
                                                       uint32_t *inoutTypeSpecFlags,
                                                       ResTable_config *inoutConfig) const {
        //printf("Resolving type=0x%x\n", inOutValue->dataType);
        if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
            uint32_t newTypeSpecFlags;
            blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
            if (kDebugTableTheme) {
                LOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=0x%x\n",
                     (int) blockIndex, (int) inOutValue->dataType, inOutValue->data);
            }
            if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
            //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
            if (blockIndex < 0) {
                return blockIndex;
            }
        }
        return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
                                       inoutTypeSpecFlags, inoutConfig);
    }

    uint32_t ResTable::Theme::getChangingConfigurations() const {
        return mTypeSpecFlags;
    }

    void ResTable::Theme::dumpToLog() const {
        LOGI("Theme %p:\n", this);
        for (size_t i = 0; i < Res_MAXPACKAGE; i++) {
            package_info *pi = mPackages[i];
            if (pi == NULL) continue;

            LOGI("  Package #0x%02x:\n", (int) (i + 1));
            for (size_t j = 0; j <= Res_MAXTYPE; j++) {
                type_info &ti = pi->types[j];
                if (ti.numEntries == 0) continue;
                LOGI("    Type #0x%02x:\n", (int) (j + 1));
                for (size_t k = 0; k < ti.numEntries; k++) {
                    const theme_entry &te = ti.entries[k];
                    if (te.value.dataType == Res_value::TYPE_NULL) continue;
                    LOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
                         (int) Res_MAKEID(i, j, k),
                         te.value.dataType, (int) te.value.data, (int) te.stringBlock);
                }
            }
        }
    }

    ResTable::ResTable()
            : mError(NO_INIT), mNextPackageId(2) {
        memset(&mParams, 0, sizeof(mParams));
        memset(mPackageMap, 0, sizeof(mPackageMap));
        if (kDebugTableSuperNoisy) {
            LOGI("Creating ResTable %p\n", this);
        }
    }

    ResTable::ResTable(const void *data, size_t size, const int32_t cookie, bool copyData)
            : mError(NO_INIT), mNextPackageId(2) {
        memset(&mParams, 0, sizeof(mParams));
        memset(mPackageMap, 0, sizeof(mPackageMap));
        addInternal(data, size, NULL, 0, false, cookie, copyData);
        LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
        if (kDebugTableSuperNoisy) {
            LOGI("Creating ResTable %p\n", this);
        }
    }

    ResTable::~ResTable() {
        if (kDebugTableSuperNoisy) {
            LOGI("Destroying ResTable in %p\n", this);
        }
        uninit();
    }

    inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const {
        return ((ssize_t) mPackageMap[Res_GETPACKAGE(resID) + 1]) - 1;
    }

    status_t ResTable::add(const void *data, size_t size, const int32_t cookie, bool copyData) {
        return addInternal(data, size, NULL, 0, false, cookie, copyData);
    }

    status_t
    ResTable::add(const void *data, size_t size, const void *idmapData, size_t idmapDataSize,
                  const int32_t cookie, bool copyData, bool appAsLib) {
        return addInternal(data, size, idmapData, idmapDataSize, appAsLib, cookie, copyData);
    }

    status_t ResTable::add(Asset *asset, const int32_t cookie, bool copyData) {
        const void *data = asset->getBuffer(true);
        if (data == NULL) {
            ALOGW("Unable to get buffer of resource asset file");
            return UNKNOWN_ERROR;
        }

        return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, false, 0, cookie,
                           copyData);
    }

    status_t ResTable::add(
            Asset *asset, Asset *idmapAsset, const int32_t cookie, bool copyData,
            bool appAsLib, bool isSystemAsset) {
        const void *data = asset->getBuffer(true);
        if (data == NULL) {
            ALOGW("Unable to get buffer of resource asset file");
            return UNKNOWN_ERROR;
        }

        size_t idmapSize = 0;
        const void *idmapData = NULL;
        if (idmapAsset != NULL) {
            idmapData = idmapAsset->getBuffer(true);
            if (idmapData == NULL) {
                ALOGW("Unable to get buffer of idmap asset file");
                return UNKNOWN_ERROR;
            }
            idmapSize = static_cast<size_t>(idmapAsset->getLength());
        }

        return addInternal(data, static_cast<size_t>(asset->getLength()),
                           idmapData, idmapSize, appAsLib, cookie, copyData, isSystemAsset);
    }

    status_t ResTable::add(ResTable *src, bool isSystemAsset) {
        mError = src->mError;

        for (size_t i = 0; i < src->mHeaders.size(); i++) {
            mHeaders.add(src->mHeaders[i]);
        }

        for (size_t i = 0; i < src->mPackageGroups.size(); i++) {
            PackageGroup *srcPg = src->mPackageGroups[i];
            PackageGroup *pg = new PackageGroup(this, srcPg->name, srcPg->id,
                                                false /* appAsLib */,
                                                isSystemAsset || srcPg->isSystemAsset);
            for (size_t j = 0; j < srcPg->packages.size(); j++) {
                pg->packages.add(srcPg->packages[j]);
            }

            for (size_t j = 0; j < srcPg->types.size(); j++) {
                if (srcPg->types[j].isEmpty()) {
                    continue;
                }

                TypeList &typeList = pg->types.editItemAt(j);
                typeList.appendVector(srcPg->types[j]);
            }
            pg->dynamicRefTable.addMappings(srcPg->dynamicRefTable);
            pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId);
            mPackageGroups.add(pg);
        }

        memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));

        return mError;
    }

    status_t ResTable::addEmpty(const int32_t cookie) {
        Header *header = new Header(this);
        header->index = mHeaders.size();
        header->cookie = cookie;
        header->values.setToEmpty();
        header->ownedData = calloc(1, sizeof(ResTable_header));

        ResTable_header *resHeader = (ResTable_header *) header->ownedData;
        resHeader->header.type = RES_TABLE_TYPE;
        resHeader->header.headerSize = sizeof(ResTable_header);
        resHeader->header.size = sizeof(ResTable_header);

        header->header = (const ResTable_header *) resHeader;
        mHeaders.add(header);
        return (mError = NO_ERROR);
    }

    status_t ResTable::addInternal(const void *data, size_t dataSize, const void *idmapData,
                                   size_t idmapDataSize,
                                   bool appAsLib, const int32_t cookie, bool copyData,
                                   bool isSystemAsset) {
        if (!data) {
            return NO_ERROR;
        }

        if (dataSize < sizeof(ResTable_header)) {
            ALOGE("Invalid data. Size(%d) is smaller than a ResTable_header(%d).",
                  (int) dataSize, (int) sizeof(ResTable_header));
            return UNKNOWN_ERROR;
        }

        Header *header = new Header(this);
        header->index = mHeaders.size();
        header->cookie = cookie;
        if (idmapData != NULL) {
            header->resourceIDMap = (uint32_t *) malloc(idmapDataSize);
            if (header->resourceIDMap == NULL) {
                delete header;
                return (mError = NO_MEMORY);
            }
            memcpy(header->resourceIDMap, idmapData, idmapDataSize);
            header->resourceIDMapSize = idmapDataSize;
        }
        mHeaders.add(header);

        const bool notDeviceEndian = htods(0xf0) != 0xf0;

        if (kDebugLoadTableNoisy) {
            ALOGV("Adding resources to ResTable: data=%p, size=%zu, cookie=%d, copy=%d "
                          "idmap=%p\n", data, dataSize, cookie, copyData, idmapData);
        }

        if (copyData || notDeviceEndian) {
            header->ownedData = malloc(dataSize);
            if (header->ownedData == NULL) {
                return (mError = NO_MEMORY);
            }
            memcpy(header->ownedData, data, dataSize);
            data = header->ownedData;
        }

        header->header = (const ResTable_header *) data;
        header->size = dtohl(header->header->header.size);
        if (kDebugLoadTableSuperNoisy) {
            LOGI("Got size %zu, again size 0x%x, raw size 0x%x\n", header->size,
                 dtohl(header->header->header.size), header->header->header.size);
        }
        if (kDebugLoadTableNoisy) {
            ALOGV("Loading ResTable @%p:\n", header->header);
        }
        if (dtohs(header->header->header.headerSize) > header->size
            || header->size > dataSize) {
            ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
                  (int) dtohs(header->header->header.headerSize),
                  (int) header->size, (int) dataSize);
            return (mError = BAD_TYPE);
        }
        if (((dtohs(header->header->header.headerSize) | header->size) & 0x3) != 0) {
            ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
                  (int) dtohs(header->header->header.headerSize),
                  (int) header->size);
            return (mError = BAD_TYPE);
        }
        header->dataEnd = ((const uint8_t *) header->header) + header->size;

        // Iterate through all chunks.
        size_t curPackage = 0;

        const ResChunk_header *chunk =
                (const ResChunk_header *) (((const uint8_t *) header->header)
                                           + dtohs(header->header->header.headerSize));
        while (((const uint8_t *) chunk) <= (header->dataEnd - sizeof(ResChunk_header)) &&
               ((const uint8_t *) chunk) <= (header->dataEnd - dtohl(chunk->size))) {
            status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd,
                                          "ResTable");
            if (err != NO_ERROR) {
                return (mError = err);
            }
            if (kDebugTableNoisy) {
                ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
                      dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
                      (void *) (((const uint8_t *) chunk) - ((const uint8_t *) header->header)));
            }
            const size_t csize = dtohl(chunk->size);
            const uint16_t ctype = dtohs(chunk->type);
            if (ctype == RES_STRING_POOL_TYPE) {
                if (header->values.getError() != NO_ERROR) {
                    // Only use the first string chunk; ignore any others that
                    // may appear.
                    status_t err = header->values.setTo(chunk, csize);
                    if (err != NO_ERROR) {
                        return (mError = err);
                    }
                } else {
                    ALOGW("Multiple string chunks found in resource table.");
                }
            } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
                if (curPackage >= dtohl(header->header->packageCount)) {
                    ALOGW("More package chunks were found than the %d declared in the header.",
                          dtohl(header->header->packageCount));
                    return (mError = BAD_TYPE);
                }

                if (parsePackage(
                        (ResTable_package *) chunk, header, appAsLib, isSystemAsset) != NO_ERROR) {
                    return mError;
                }
                curPackage++;
            } else {
                ALOGW("Unknown chunk type 0x%x in table at %p.\n",
                      ctype,
                      (void *) (((const uint8_t *) chunk) - ((const uint8_t *) header->header)));
            }
            chunk = (const ResChunk_header *)
                    (((const uint8_t *) chunk) + csize);
        }

        if (curPackage < dtohl(header->header->packageCount)) {
            ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
                  (int) curPackage, dtohl(header->header->packageCount));
            return (mError = BAD_TYPE);
        }
        mError = header->values.getError();
        if (mError != NO_ERROR) {
            ALOGW("No string values found in resource table!");
        }

        if (kDebugTableNoisy) {
            ALOGV("Returning from add with mError=%d\n", mError);
        }
        return mError;
    }

    status_t ResTable::getError() const {
        return mError;
    }

    void ResTable::uninit() {
        mError = NO_INIT;
        size_t N = mPackageGroups.size();
        for (size_t i = 0; i < N; i++) {
            PackageGroup *g = mPackageGroups[i];
            delete g;
        }
        N = mHeaders.size();
        for (size_t i = 0; i < N; i++) {
            Header *header = mHeaders[i];
            if (header->owner == this) {
                if (header->ownedData) {
                    free(header->ownedData);
                }
                delete header;
            }
        }

        mPackageGroups.clear();
        mHeaders.clear();
    }

    bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name *outName) const {
        if (mError != NO_ERROR) {
            return false;
        }

        const ssize_t p = getResourcePackageIndex(resID);
        const int t = Res_GETTYPE(resID);
        const int e = Res_GETENTRY(resID);

        if (p < 0) {
            if (Res_GETPACKAGE(resID) + 1 == 0) {
                ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
            } else {
#ifndef STATIC_ANDROIDFW_FOR_TOOLS
                ALOGW("No known package when getting name for resource number 0x%08x", resID);
#endif
            }
            return false;
        }
        if (t < 0) {
            ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
            return false;
        }

        const PackageGroup *const grp = mPackageGroups[p];
        if (grp == NULL) {
            ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
            return false;
        }

        Entry entry;
        status_t err = getEntry(grp, t, e, NULL, &entry);
        if (err != NO_ERROR) {
            return false;
        }

        outName->package = grp->name.string();
        outName->packageLen = grp->name.size();
        if (allowUtf8) {
            outName->type8 = entry.typeStr.string8(&outName->typeLen);
            outName->name8 = entry.keyStr.string8(&outName->nameLen);
        } else {
            outName->type8 = NULL;
            outName->name8 = NULL;
        }
        if (outName->type8 == NULL) {
            outName->type = entry.typeStr.string16(&outName->typeLen);
            // If we have a bad index for some reason, we should abort.
            if (outName->type == NULL) {
                return false;
            }
        }
        if (outName->name8 == NULL) {
            outName->name = entry.keyStr.string16(&outName->nameLen);
            // If we have a bad index for some reason, we should abort.
            if (outName->name == NULL) {
                return false;
            }
        }

        return true;
    }

    ssize_t
    ResTable::getResource(uint32_t resID, Res_value *outValue, bool mayBeBag, uint16_t density,
                          uint32_t *outSpecFlags, ResTable_config *outConfig) const {
        if (mError != NO_ERROR) {
            return mError;
        }

        const ssize_t p = getResourcePackageIndex(resID);
        const int t = Res_GETTYPE(resID);
        const int e = Res_GETENTRY(resID);

        if (p < 0) {
            if (Res_GETPACKAGE(resID) + 1 == 0) {
                ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
            } else {
                ALOGW("No known package when getting value for resource number 0x%08x", resID);
            }
            return BAD_INDEX;
        }
        if (t < 0) {
            ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
            return BAD_INDEX;
        }

        const PackageGroup *const grp = mPackageGroups[p];
        if (grp == NULL) {
            ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
            return BAD_INDEX;
        }

        // Allow overriding density
        ResTable_config desiredConfig = mParams;
        if (density > 0) {
            desiredConfig.density = density;
        }

        Entry entry;
        status_t err = getEntry(grp, t, e, &desiredConfig, &entry);
        if (err != NO_ERROR) {
            // Only log the failure when we're not running on the host as
            // part of a tool. The caller will do its own logging.
#ifndef STATIC_ANDROIDFW_FOR_TOOLS
            ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n",
                  resID, t, e, err);
#endif
            return err;
        }

        if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) {
            if (!mayBeBag) {
                ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID);
            }
            return BAD_VALUE;
        }

        const Res_value *value = reinterpret_cast<const Res_value *>(
                reinterpret_cast<const uint8_t *>(entry.entry) + entry.entry->size);

        outValue->size = dtohs(value->size);
        outValue->res0 = value->res0;
        outValue->dataType = value->dataType;
        outValue->data = dtohl(value->data);

        // The reference may be pointing to a resource in a shared library. These
        // references have build-time generated package IDs. These ids may not match
        // the actual package IDs of the corresponding packages in this ResTable.
        // We need to fix the package ID based on a mapping.
        if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) {
            ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data);
            return BAD_VALUE;
        }

        if (kDebugTableNoisy) {
            size_t len;
            printf("Found value: pkg=%zu, type=%d, str=%s, int=%d\n",
                   entry.package->header->index,
                   outValue->dataType,
                   outValue->dataType == Res_value::TYPE_STRING ?
                   String8(entry.package->header->values.stringAt(outValue->data, &len)).string() :
                   "",
                   outValue->data);
        }

        if (outSpecFlags != NULL) {
            *outSpecFlags = entry.specFlags;
        }

        if (outConfig != NULL) {
            *outConfig = entry.config;
        }

        return entry.package->header->index;
    }

    ssize_t ResTable::resolveReference(Res_value *value, ssize_t blockIndex,
                                       uint32_t *outLastRef, uint32_t *inoutTypeSpecFlags,
                                       ResTable_config *outConfig) const {
        int count = 0;
        while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE
               && value->data != 0 && count < 20) {
            if (outLastRef) *outLastRef = value->data;
            uint32_t newFlags = 0;
            const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
                                                 outConfig);
            if (newIndex == BAD_INDEX) {
                return BAD_INDEX;
            }
            if (kDebugTableTheme) {
                LOGI("Resolving reference 0x%x: newIndex=%d, type=0x%x, data=0x%x\n",
                     value->data, (int) newIndex, (int) value->dataType, value->data);
            }
            //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
            if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
            if (newIndex < 0) {
                // This can fail if the resource being referenced is a style...
                // in this case, just return the reference, and expect the
                // caller to deal with.
                return blockIndex;
            }
            blockIndex = newIndex;
            count++;
        }
        return blockIndex;
    }

    const char16_t *ResTable::valueToString(
            const Res_value *value, size_t stringBlock,
            char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t *outLen) const {
        if (!value) {
            return NULL;
        }
        if (value->dataType == value->TYPE_STRING) {
            return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
        }
        // XXX do int to string conversions.
        return NULL;
    }

    ssize_t ResTable::lockBag(uint32_t resID, const bag_entry **outBag) const {
        mLock.lock();
        ssize_t err = getBagLocked(resID, outBag);
        if (err < NO_ERROR) {
            //printf("*** get failed!  unlocking\n");
            mLock.unlock();
        }
        return err;
    }

    void ResTable::unlockBag(const bag_entry * /*bag*/) const {
        //printf("<<< unlockBag %p\n", this);
        mLock.unlock();
    }

    void ResTable::lock() const {
        mLock.lock();
    }

    void ResTable::unlock() const {
        mLock.unlock();
    }

    ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry **outBag,
                                   uint32_t *outTypeSpecFlags) const {
        if (mError != NO_ERROR) {
            return mError;
        }

        const ssize_t p = getResourcePackageIndex(resID);
        const int t = Res_GETTYPE(resID);
        const int e = Res_GETENTRY(resID);

        if (p < 0) {
            ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
            return BAD_INDEX;
        }
        if (t < 0) {
            ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
            return BAD_INDEX;
        }

        //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
        PackageGroup *const grp = mPackageGroups[p];
        if (grp == NULL) {
            ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
            return BAD_INDEX;
        }

        const TypeList &typeConfigs = grp->types[t];
        if (typeConfigs.isEmpty()) {
            ALOGW("Type identifier 0x%x does not exist.", t + 1);
            return BAD_INDEX;
        }

        const size_t NENTRY = typeConfigs[0]->entryCount;
        if (e >= (int) NENTRY) {
            ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
                  e, (int) typeConfigs[0]->entryCount);
            return BAD_INDEX;
        }

        // First see if we've already computed this bag...
        TypeCacheEntry &cacheEntry = grp->typeCacheEntries.editItemAt(t);
        bag_set **typeSet = cacheEntry.cachedBags;
        if (typeSet) {
            bag_set *set = typeSet[e];
            if (set) {
                if (set != (bag_set *) 0xFFFFFFFF) {
                    if (outTypeSpecFlags != NULL) {
                        *outTypeSpecFlags = set->typeSpecFlags;
                    }
                    *outBag = (bag_entry *) (set + 1);
                    if (kDebugTableSuperNoisy) {
                        LOGI("Found existing bag for: 0x%x\n", resID);
                    }
                    return set->numAttrs;
                }
                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
                      resID);
                return BAD_INDEX;
            }
        }

        // Bag not found, we need to compute it!
        if (!typeSet) {
            typeSet = (bag_set **) calloc(NENTRY, sizeof(bag_set *));
            if (!typeSet) return NO_MEMORY;
            cacheEntry.cachedBags = typeSet;
        }

        // Mark that we are currently working on this one.
        typeSet[e] = (bag_set *) 0xFFFFFFFF;

        if (kDebugTableNoisy) {
            LOGI("Building bag: %x\n", resID);
        }

        // Now collect all bag attributes
        Entry entry;
        status_t err = getEntry(grp, t, e, &mParams, &entry);
        if (err != NO_ERROR) {
            return err;
        }

        const uint16_t entrySize = dtohs(entry.entry->size);
        const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
                                ? dtohl(((const ResTable_map_entry *) entry.entry)->parent.ident)
                                : 0;
        const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
                               ? dtohl(((const ResTable_map_entry *) entry.entry)->count) : 0;

        size_t N = count;

        if (kDebugTableNoisy) {
            LOGI("Found map: size=%x parent=%x count=%d\n", entrySize, parent, count);

            // If this map inherits from another, we need to start
            // with its parent's values.  Otherwise start out empty.
            LOGI("Creating new bag, entrySize=0x%08x, parent=0x%08x\n", entrySize, parent);
        }

        // This is what we are building.
        bag_set *set = NULL;

        if (parent) {
            uint32_t resolvedParent = parent;

            // Bags encode a parent reference without using the standard
            // Res_value structure. That means we must always try to
            // resolve a parent reference in case it is actually a
            // TYPE_DYNAMIC_REFERENCE.
            status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent);
            if (err != NO_ERROR) {
                ALOGE("Failed resolving bag parent id 0x%08x", parent);
                return UNKNOWN_ERROR;
            }

            const bag_entry *parentBag;
            uint32_t parentTypeSpecFlags = 0;
            const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags);
            const size_t NT = ((NP >= 0) ? NP : 0) + N;
            set = (bag_set *) malloc(sizeof(bag_set) + sizeof(bag_entry) * NT);
            if (set == NULL) {
                return NO_MEMORY;
            }
            if (NP > 0) {
                memcpy(set + 1, parentBag, NP * sizeof(bag_entry));
                set->numAttrs = NP;
                if (kDebugTableNoisy) {
                    LOGI("Initialized new bag with %zd inherited attributes.\n", NP);
                }
            } else {
                if (kDebugTableNoisy) {
                    LOGI("Initialized new bag with no inherited attributes.\n");
                }
                set->numAttrs = 0;
            }
            set->availAttrs = NT;
            set->typeSpecFlags = parentTypeSpecFlags;
        } else {
            set = (bag_set *) malloc(sizeof(bag_set) + sizeof(bag_entry) * N);
            if (set == NULL) {
                return NO_MEMORY;
            }
            set->numAttrs = 0;
            set->availAttrs = N;
            set->typeSpecFlags = 0;
        }

        set->typeSpecFlags |= entry.specFlags;

        // Now merge in the new attributes...
        size_t curOff =
                (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type))
                + dtohs(entry.entry->size);
        const ResTable_map *map;
        bag_entry *entries = (bag_entry *) (set + 1);
        size_t curEntry = 0;
        uint32_t pos = 0;
        if (kDebugTableNoisy) {
            LOGI("Starting with set %p, entries=%p, avail=%zu\n", set, entries, set->availAttrs);
        }
        while (pos < count) {
            if (kDebugTableNoisy) {
                LOGI("Now at %p\n", (void *) curOff);
            }

            if (curOff > (dtohl(entry.type->header.size) - sizeof(ResTable_map))) {
                ALOGW("ResTable_map at %d is beyond type chunk data %d",
                      (int) curOff, dtohl(entry.type->header.size));
                free(set);
                return BAD_TYPE;
            }
            map = (const ResTable_map *) (((const uint8_t *) entry.type) + curOff);
            N++;

            uint32_t newName = htodl(map->name.ident);
            if (!Res_INTERNALID(newName)) {
                // Attributes don't have a resource id as the name. They specify
                // other data, which would be wrong to change via a lookup.
                if (grp->dynamicRefTable.lookupResourceId(&newName) != NO_ERROR) {
                    ALOGE("Failed resolving ResTable_map name at %d with ident 0x%08x",
                          (int) curOff, (int) newName);
                    free(set);
                    return UNKNOWN_ERROR;
                }
            }

            bool isInside;
            uint32_t oldName = 0;
            while ((isInside = (curEntry < set->numAttrs))
                   && (oldName = entries[curEntry].map.name.ident) < newName) {
                if (kDebugTableNoisy) {
                    LOGI("#%zu: Keeping existing attribute: 0x%08x\n",
                         curEntry, entries[curEntry].map.name.ident);
                }
                curEntry++;
            }

            if ((!isInside) || oldName != newName) {
                // This is a new attribute...  figure out what to do with it.
                if (set->numAttrs >= set->availAttrs) {
                    // Need to alloc more memory...
                    const size_t newAvail = set->availAttrs + N;
                    void *oldSet = set;
                    set = (bag_set *) realloc(set,
                                              sizeof(bag_set)
                                              + sizeof(bag_entry) * newAvail);
                    if (set == NULL) {
                        free(oldSet);
                        return NO_MEMORY;
                    }
                    set->availAttrs = newAvail;
                    entries = (bag_entry *) (set + 1);
                    if (kDebugTableNoisy) {
                        LOGI("Reallocated set %p, entries=%p, avail=%zu\n",
                             set, entries, set->availAttrs);
                    }
                }
                if (isInside) {
                    // Going in the middle, need to make space.
                    memmove(entries + curEntry + 1, entries + curEntry,
                            sizeof(bag_entry) * (set->numAttrs - curEntry));
                    set->numAttrs++;
                }
                if (kDebugTableNoisy) {
                    LOGI("#%zu: Inserting new attribute: 0x%08x\n", curEntry, newName);
                }
            } else {
                if (kDebugTableNoisy) {
                    LOGI("#%zu: Replacing existing attribute: 0x%08x\n", curEntry, oldName);
                }
            }

            bag_entry *cur = entries + curEntry;

            cur->stringBlock = entry.package->header->index;
            cur->map.name.ident = newName;
            cur->map.value.copyFrom_dtoh(map->value);
            status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value);
            if (err != NO_ERROR) {
                ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data);
                return UNKNOWN_ERROR;
            }

            if (kDebugTableNoisy) {
                LOGI("Setting entry #%zu %p: block=%zd, name=0x%08d, type=%d, data=0x%08x\n",
                     curEntry, cur, cur->stringBlock, cur->map.name.ident,
                     cur->map.value.dataType, cur->map.value.data);
            }

            // On to the next!
            curEntry++;
            pos++;
            const size_t size = dtohs(map->value.size);
            curOff += size + sizeof(*map) - sizeof(map->value);
        }

        if (curEntry > set->numAttrs) {
            set->numAttrs = curEntry;
        }

        // And this is it...
        typeSet[e] = set;
        if (set) {
            if (outTypeSpecFlags != NULL) {
                *outTypeSpecFlags = set->typeSpecFlags;
            }
            *outBag = (bag_entry *) (set + 1);
            if (kDebugTableNoisy) {
                LOGI("Returning %zu attrs\n", set->numAttrs);
            }
            return set->numAttrs;
        }
        return BAD_INDEX;
    }

    void ResTable::setParameters(const ResTable_config *params) {
        AutoMutex _lock(mLock);
        AutoMutex _lock2(mFilteredConfigLock);

        if (kDebugTableGetEntry) {
            LOGI("Setting parameters: %s\n", params->toString().string());
        }
        mParams = *params;
        for (size_t p = 0; p < mPackageGroups.size(); p++) {
            PackageGroup *packageGroup = mPackageGroups.editItemAt(p);
            if (kDebugTableNoisy) {
                LOGI("CLEARING BAGS FOR GROUP %zu!", p);
            }
            packageGroup->clearBagCache();

            // Find which configurations match the set of parameters. This allows for a much
            // faster lookup in getEntry() if the set of values is narrowed down.
            for (size_t t = 0; t < packageGroup->types.size(); t++) {
                if (packageGroup->types[t].isEmpty()) {
                    continue;
                }

                TypeList &typeList = packageGroup->types.editItemAt(t);

                // Retrieve the cache entry for this type.
                TypeCacheEntry &cacheEntry = packageGroup->typeCacheEntries.editItemAt(t);

                for (size_t ts = 0; ts < typeList.size(); ts++) {
                    Type *type = typeList.editItemAt(ts);

                    std::shared_ptr<Vector<const ResTable_type *>> newFilteredConfigs =
                            std::make_shared<Vector<const ResTable_type *>>();

                    for (size_t ti = 0; ti < type->configs.size(); ti++) {
                        ResTable_config config;
                        config.copyFromDtoH(type->configs[ti]->config);

                        if (config.match(mParams)) {
                            newFilteredConfigs->add(type->configs[ti]);
                        }
                    }

                    if (kDebugTableNoisy) {
                        ALOGD("Updating pkg=%zu type=%zu with %zu filtered configs",
                              p, t, newFilteredConfigs->size());
                    }

                    cacheEntry.filteredConfigs.add(newFilteredConfigs);
                }
            }
        }
    }

    void ResTable::getParameters(ResTable_config *params) const {
        mLock.lock();
        *params = mParams;
        mLock.unlock();
    }

    struct id_name_map {
        uint32_t id;
        size_t len;
        char16_t name[6];
    };

    const static id_name_map ID_NAMES[] = {
            {ResTable_map::ATTR_TYPE,  5, {'^', 't', 'y', 'p', 'e'}},
            {ResTable_map::ATTR_L10N,  5, {'^', 'l', '1', '0', 'n'}},
            {ResTable_map::ATTR_MIN,   4, {'^', 'm', 'i', 'n'}},
            {ResTable_map::ATTR_MAX,   4, {'^', 'm', 'a', 'x'}},
            {ResTable_map::ATTR_OTHER, 6, {'^', 'o', 't', 'h', 'e', 'r'}},
            {ResTable_map::ATTR_ZERO,  5, {'^', 'z', 'e', 'r', 'o'}},
            {ResTable_map::ATTR_ONE,   4, {'^', 'o', 'n', 'e'}},
            {ResTable_map::ATTR_TWO,   4, {'^', 't', 'w', 'o'}},
            {ResTable_map::ATTR_FEW,   4, {'^', 'f', 'e', 'w'}},
            {ResTable_map::ATTR_MANY,  5, {'^', 'm', 'a', 'n', 'y'}},
    };

    uint32_t ResTable::identifierForName(const char16_t *name, size_t nameLen,
                                         const char16_t *type, size_t typeLen,
                                         const char16_t *package,
                                         size_t packageLen,
                                         uint32_t *outTypeSpecFlags) const {
        if (kDebugTableSuperNoisy) {
            printf("Identifier for name: error=%d\n", mError);
        }

        // Check for internal resource identifier as the very first thing, so
        // that we will always find them even when there are no resources.
        if (name[0] == '^') {
            const int N = (sizeof(ID_NAMES) / sizeof(ID_NAMES[0]));
            size_t len;
            for (int i = 0; i < N; i++) {
                const id_name_map *m = ID_NAMES + i;
                len = m->len;
                if (len != nameLen) {
                    continue;
                }
                for (size_t j = 1; j < len; j++) {
                    if (m->name[j] != name[j]) {
                        goto nope;
                    }
                }
                if (outTypeSpecFlags) {
                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
                }
                return m->id;
                nope:;
            }
            if (nameLen > 7) {
                if (name[1] == 'i' && name[2] == 'n'
                    && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
                    && name[6] == '_') {
                    int index = atoi(String8(name + 7, nameLen - 7).string());
                    if (Res_CHECKID(index)) {
                        ALOGW("Array resource index: %d is too large.",
                              index);
                        return 0;
                    }
                    if (outTypeSpecFlags) {
                        *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
                    }
                    return Res_MAKEARRAY(index);
                }
            }
            return 0;
        }

        if (mError != NO_ERROR) {
            return 0;
        }

        bool fakePublic = false;

        // Figure out the package and type we are looking in...

        const char16_t *packageEnd = NULL;
        const char16_t *typeEnd = NULL;
        const char16_t *const nameEnd = name + nameLen;
        const char16_t *p = name;
        while (p < nameEnd) {
            if (*p == ':') packageEnd = p;
            else if (*p == '/') typeEnd = p;
            p++;
        }
        if (*name == '@') {
            name++;
            if (*name == '*') {
                fakePublic = true;
                name++;
            }
        }
        if (name >= nameEnd) {
            return 0;
        }

        if (packageEnd) {
            package = name;
            packageLen = packageEnd - name;
            name = packageEnd + 1;
        } else if (!package) {
            return 0;
        }

        if (typeEnd) {
            type = name;
            typeLen = typeEnd - name;
            name = typeEnd + 1;
        } else if (!type) {
            return 0;
        }

        if (name >= nameEnd) {
            return 0;
        }
        nameLen = nameEnd - name;

        if (kDebugTableNoisy) {
            printf("Looking for identifier: type=%s, name=%s, package=%s\n",
                   String8(type, typeLen).string(),
                   String8(name, nameLen).string(),
                   String8(package, packageLen).string());
        }

        const String16 attr("attr");
        const String16 attrPrivate("^attr-private");

        const size_t NG = mPackageGroups.size();
        for (size_t ig = 0; ig < NG; ig++) {
            const PackageGroup *group = mPackageGroups[ig];

            if (strzcmp16(package, packageLen,
                          group->name.string(), group->name.size())) {
                if (kDebugTableNoisy) {
                    printf("Skipping package group: %s\n", String8(group->name).string());
                }
                continue;
            }

            const size_t packageCount = group->packages.size();
            for (size_t pi = 0; pi < packageCount; pi++) {
                const char16_t *targetType = type;
                size_t targetTypeLen = typeLen;

                do {
                    ssize_t ti = group->packages[pi]->typeStrings.indexOfString(
                            targetType, targetTypeLen);
                    if (ti < 0) {
                        continue;
                    }

                    ti += group->packages[pi]->typeIdOffset;

                    const uint32_t identifier = findEntry(group, ti, name, nameLen,
                                                          outTypeSpecFlags);
                    if (identifier != 0) {
                        if (fakePublic && outTypeSpecFlags) {
                            *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
                        }
                        return identifier;
                    }
                } while (strzcmp16(attr.string(), attr.size(), targetType, targetTypeLen) == 0
                         && (targetType = attrPrivate.string())
                         && (targetTypeLen = attrPrivate.size())
                        );
            }
            break;
        }
        return 0;
    }

    uint32_t ResTable::findEntry(const PackageGroup *group, ssize_t typeIndex, const char16_t *name,
                                 size_t nameLen, uint32_t *outTypeSpecFlags) const {
        const TypeList &typeList = group->types[typeIndex];
        const size_t typeCount = typeList.size();
        for (size_t i = 0; i < typeCount; i++) {
            const Type *t = typeList[i];
            const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen);
            if (ei < 0) {
                continue;
            }

            const size_t configCount = t->configs.size();
            for (size_t j = 0; j < configCount; j++) {
                const TypeVariant tv(t->configs[j]);
                for (TypeVariant::iterator iter = tv.beginEntries();
                     iter != tv.endEntries();
                     iter++) {
                    const ResTable_entry *entry = *iter;
                    if (entry == NULL) {
                        continue;
                    }

                    if (dtohl(entry->key.index) == (size_t) ei) {
                        uint32_t resId = Res_MAKEID(group->id - 1, typeIndex, iter.index());
                        if (outTypeSpecFlags) {
                            Entry result;
                            if (getEntry(group, typeIndex, iter.index(), NULL, &result) !=
                                NO_ERROR) {
                                ALOGW("Failed to find spec flags for 0x%08x", resId);
                                return 0;
                            }
                            *outTypeSpecFlags = result.specFlags;
                        }
                        return resId;
                    }
                }
            }
        }
        return 0;
    }

    bool ResTable::expandResourceRef(const char16_t *refStr, size_t refLen,
                                     String16 *outPackage,
                                     String16 *outType,
                                     String16 *outName,
                                     const String16 *defType,
                                     const String16 *defPackage,
                                     const char **outErrorMsg,
                                     bool *outPublicOnly) {
        const char16_t *packageEnd = NULL;
        const char16_t *typeEnd = NULL;
        const char16_t *p = refStr;
        const char16_t *const end = p + refLen;
        while (p < end) {
            if (*p == ':') packageEnd = p;
            else if (*p == '/') {
                typeEnd = p;
                break;
            }
            p++;
        }
        p = refStr;
        if (*p == '@') p++;

        if (outPublicOnly != NULL) {
            *outPublicOnly = true;
        }
        if (*p == '*') {
            p++;
            if (outPublicOnly != NULL) {
                *outPublicOnly = false;
            }
        }

        if (packageEnd) {
            *outPackage = String16(p, packageEnd - p);
            p = packageEnd + 1;
        } else {
            if (!defPackage) {
                if (outErrorMsg) {
                    *outErrorMsg = "No resource package specified";
                }
                return false;
            }
            *outPackage = *defPackage;
        }
        if (typeEnd) {
            *outType = String16(p, typeEnd - p);
            p = typeEnd + 1;
        } else {
            if (!defType) {
                if (outErrorMsg) {
                    *outErrorMsg = "No resource type specified";
                }
                return false;
            }
            *outType = *defType;
        }
        *outName = String16(p, end - p);
        if (**outPackage == 0) {
            if (outErrorMsg) {
                *outErrorMsg = "Resource package cannot be an empty string";
            }
            return false;
        }
        if (**outType == 0) {
            if (outErrorMsg) {
                *outErrorMsg = "Resource type cannot be an empty string";
            }
            return false;
        }
        if (**outName == 0) {
            if (outErrorMsg) {
                *outErrorMsg = "Resource id cannot be an empty string";
            }
            return false;
        }
        return true;
    }

    static uint32_t get_hex(char c, bool *outError) {
        if (c >= '0' && c <= '9') {
            return c - '0';
        } else if (c >= 'a' && c <= 'f') {
            return c - 'a' + 0xa;
        } else if (c >= 'A' && c <= 'F') {
            return c - 'A' + 0xa;
        }
        *outError = true;
        return 0;
    }

    struct unit_entry {
        const char *name;
        size_t len;
        uint8_t type;
        uint32_t unit;
        float scale;
    };

    static const unit_entry unitNames[] = {
            {"px",  strlen("px"),  Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX,       1.0f},
            {"dip", strlen(
                    "dip"),        Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP,      1.0f},
            {"dp",  strlen(
                    "dp"),         Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP,      1.0f},
            {"sp",  strlen(
                    "sp"),         Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP,       1.0f},
            {"pt",  strlen(
                    "pt"),         Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT,       1.0f},
            {"in",  strlen(
                    "in"),         Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN,       1.0f},
            {"mm",  strlen(
                    "mm"),         Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM,       1.0f},
            {"%",   strlen(
                    "%"),          Res_value::TYPE_FRACTION,  Res_value::COMPLEX_UNIT_FRACTION, 1.0f /
                                                                                                100},
            {"%p",  strlen(
                    "%p"),         Res_value::TYPE_FRACTION,  Res_value::COMPLEX_UNIT_FRACTION_PARENT,
                                                                                                1.0f /
                                                                                                100},
            {NULL,  0,             0,                         0,                                0}
    };

    static bool parse_unit(const char *str, Res_value *outValue,
                           float *outScale, const char **outEnd) {
        const char *end = str;
        while (*end != 0 && !isspace((unsigned char) *end)) {
            end++;
        }
        const size_t len = end - str;

        const char *realEnd = end;
        while (*realEnd != 0 && isspace((unsigned char) *realEnd)) {
            realEnd++;
        }
        if (*realEnd != 0) {
            return false;
        }

        const unit_entry *cur = unitNames;
        while (cur->name) {
            if (len == cur->len && strncmp(cur->name, str, len) == 0) {
                outValue->dataType = cur->type;
                outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
                *outScale = cur->scale;
                *outEnd = end;
                //printf("Found unit %s for %s\n", cur->name, str);
                return true;
            }
            cur++;
        }

        return false;
    }

    bool U16StringToInt(const char16_t *s, size_t len, Res_value *outValue) {
        while (len > 0 && isspace16(*s)) {
            s++;
            len--;
        }

        if (len <= 0) {
            return false;
        }

        size_t i = 0;
        int64_t val = 0;
        bool neg = false;

        if (*s == '-') {
            neg = true;
            i++;
        }

        if (s[i] < '0' || s[i] > '9') {
            return false;
        }

        static_assert(std::is_same<uint32_t, Res_value::data_type>::value,
                      "Res_value::data_type has changed. The range checks in this "
                              "function are no longer correct.");

        // Decimal or hex?
        bool isHex;
        if (len > 1 && s[i] == '0' && s[i + 1] == 'x') {
            isHex = true;
            i += 2;

            if (neg) {
                return false;
            }

            if (i == len) {
                // Just u"0x"
                return false;
            }

            bool error = false;
            while (i < len && !error) {
                val = (val * 16) + get_hex(s[i], &error);
                i++;

                if (val > std::numeric_limits<uint32_t>::max()) {
                    return false;
                }
            }
            if (error) {
                return false;
            }
        } else {
            isHex = false;
            while (i < len) {
                if (s[i] < '0' || s[i] > '9') {
                    return false;
                }
                val = (val * 10) + s[i] - '0';
                i++;

                if ((neg && -val < std::numeric_limits<int32_t>::min()) ||
                    (!neg && val > std::numeric_limits<int32_t>::max())) {
                    return false;
                }
            }
        }

        if (neg) val = -val;

        while (i < len && isspace16(s[i])) {
            i++;
        }

        if (i != len) {
            return false;
        }

        if (outValue) {
            outValue->dataType =
                    isHex ? outValue->TYPE_INT_HEX : outValue->TYPE_INT_DEC;
            outValue->data = static_cast<Res_value::data_type>(val);
        }
        return true;
    }

    bool ResTable::stringToInt(const char16_t *s, size_t len, Res_value *outValue) {
        return U16StringToInt(s, len, outValue);
    }

    bool ResTable::stringToFloat(const char16_t *s, size_t len, Res_value *outValue) {
        while (len > 0 && isspace16(*s)) {
            s++;
            len--;
        }

        if (len <= 0) {
            return false;
        }

        char buf[128];
        int i = 0;
        while (len > 0 && *s != 0 && i < 126) {
            if (*s > 255) {
                return false;
            }
            buf[i++] = *s++;
            len--;
        }

        if (len > 0) {
            return false;
        }
        if ((buf[0] < '0' || buf[0] > '9') && buf[0] != '.' && buf[0] != '-' && buf[0] != '+') {
            return false;
        }

        buf[i] = 0;
        const char *end;
        float f = strtof(buf, (char **) &end);

        if (*end != 0 && !isspace((unsigned char) *end)) {
            // Might be a unit...
            float scale;
            if (parse_unit(end, outValue, &scale, &end)) {
                f *= scale;
                const bool neg = f < 0;
                if (neg) f = -f;
                uint64_t bits = (uint64_t) (f * (1 << 23) + .5f);
                uint32_t radix;
                uint32_t shift;
                if ((bits & 0x7fffff) == 0) {
                    // Always use 23p0 if there is no fraction, just to make
                    // things easier to read.
                    radix = Res_value::COMPLEX_RADIX_23p0;
                    shift = 23;
                } else if ((bits & 0xffffffffff800000LL) == 0) {
                    // Magnitude is zero -- can fit in 0 bits of precision.
                    radix = Res_value::COMPLEX_RADIX_0p23;
                    shift = 0;
                } else if ((bits & 0xffffffff80000000LL) == 0) {
                    // Magnitude can fit in 8 bits of precision.
                    radix = Res_value::COMPLEX_RADIX_8p15;
                    shift = 8;
                } else if ((bits & 0xffffff8000000000LL) == 0) {
                    // Magnitude can fit in 16 bits of precision.
                    radix = Res_value::COMPLEX_RADIX_16p7;
                    shift = 16;
                } else {
                    // Magnitude needs entire range, so no fractional part.
                    radix = Res_value::COMPLEX_RADIX_23p0;
                    shift = 23;
                }
                int32_t mantissa = (int32_t) (
                        (bits >> shift) & Res_value::COMPLEX_MANTISSA_MASK);
                if (neg) {
                    mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
                }
                outValue->data |=
                        (radix << Res_value::COMPLEX_RADIX_SHIFT)
                        | (mantissa << Res_value::COMPLEX_MANTISSA_SHIFT);
                //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
                //       f * (neg ? -1 : 1), bits, f*(1<<23),
                //       radix, shift, outValue->data);
                return true;
            }
            return false;
        }

        while (*end != 0 && isspace((unsigned char) *end)) {
            end++;
        }

        if (*end == 0) {
            if (outValue) {
                outValue->dataType = outValue->TYPE_FLOAT;
                *(float *) (&outValue->data) = f;
                return true;
            }
        }

        return false;
    }

    bool ResTable::stringToValue(Res_value *outValue, String16 *outString,
                                 const char16_t *s, size_t len,
                                 bool preserveSpaces, bool coerceType,
                                 uint32_t attrID,
                                 const String16 *defType,
                                 const String16 *defPackage,
                                 Accessor *accessor,
                                 void *accessorCookie,
                                 uint32_t attrType,
                                 bool enforcePrivate) const {
        bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
        const char *errorMsg = NULL;

        outValue->size = sizeof(Res_value);
        outValue->res0 = 0;

        // First strip leading/trailing whitespace.  Do this before handling
        // escapes, so they can be used to force whitespace into the string.
        if (!preserveSpaces) {
            while (len > 0 && isspace16(*s)) {
                s++;
                len--;
            }
            while (len > 0 && isspace16(s[len - 1])) {
                len--;
            }
            // If the string ends with '\', then we keep the space after it.
            if (len > 0 && s[len - 1] == '\\' && s[len] != 0) {
                len++;
            }
        }

        //printf("Value for: %s\n", String8(s, len).string());

        uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
        uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
        bool fromAccessor = false;
        if (attrID != 0 && !Res_INTERNALID(attrID)) {
            const ssize_t p = getResourcePackageIndex(attrID);
            const bag_entry *bag;
            ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
            //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
            if (cnt >= 0) {
                while (cnt > 0) {
                    //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
                    switch (bag->map.name.ident) {
                        case ResTable_map::ATTR_TYPE:
                            attrType = bag->map.value.data;
                            break;
                        case ResTable_map::ATTR_MIN:
                            attrMin = bag->map.value.data;
                            break;
                        case ResTable_map::ATTR_MAX:
                            attrMax = bag->map.value.data;
                            break;
                        case ResTable_map::ATTR_L10N:
                            l10nReq = bag->map.value.data;
                            break;
                    }
                    bag++;
                    cnt--;
                }
                unlockBag(bag);
            } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
                fromAccessor = true;
                if (attrType == ResTable_map::TYPE_ENUM
                    || attrType == ResTable_map::TYPE_FLAGS
                    || attrType == ResTable_map::TYPE_INTEGER) {
                    accessor->getAttributeMin(attrID, &attrMin);
                    accessor->getAttributeMax(attrID, &attrMax);
                }
                if (localizationSetting) {
                    l10nReq = accessor->getAttributeL10N(attrID);
                }
            }
        }

        const bool canStringCoerce =
                coerceType && (attrType & ResTable_map::TYPE_STRING) != 0;

        if (*s == '@') {
            outValue->dataType = outValue->TYPE_REFERENCE;

            // Note: we don't check attrType here because the reference can
            // be to any other type; we just need to count on the client making
            // sure the referenced type is correct.

            //printf("Looking up ref: %s\n", String8(s, len).string());

            // It's a reference!
            if (len == 5 && s[1] == 'n' && s[2] == 'u' && s[3] == 'l' && s[4] == 'l') {
                // Special case @null as undefined. This will be converted by
                // AssetManager to TYPE_NULL with data DATA_NULL_UNDEFINED.
                outValue->data = 0;
                return true;
            } else if (len == 6 && s[1] == 'e' && s[2] == 'm' && s[3] == 'p' && s[4] == 't' &&
                       s[5] == 'y') {
                // Special case @empty as explicitly defined empty value.
                outValue->dataType = Res_value::TYPE_NULL;
                outValue->data = Res_value::DATA_NULL_EMPTY;
                return true;
            } else {
                bool createIfNotFound = false;
                const char16_t *resourceRefName;
                int resourceNameLen;
                if (len > 2 && s[1] == '+') {
                    createIfNotFound = true;
                    resourceRefName = s + 2;
                    resourceNameLen = len - 2;
                } else if (len > 2 && s[1] == '*') {
                    enforcePrivate = false;
                    resourceRefName = s + 2;
                    resourceNameLen = len - 2;
                } else {
                    createIfNotFound = false;
                    resourceRefName = s + 1;
                    resourceNameLen = len - 1;
                }
                String16 package, type, name;
                if (!expandResourceRef(resourceRefName, resourceNameLen, &package, &type, &name,
                                       defType, defPackage, &errorMsg)) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, errorMsg);
                    }
                    return false;
                }

                uint32_t specFlags = 0;
                uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
                                                 type.size(), package.string(), package.size(),
                                                 &specFlags);
                if (rid != 0) {
                    if (enforcePrivate) {
                        if (accessor == NULL || accessor->getAssetsPackage() != package) {
                            if ((specFlags & ResTable_typeSpec::SPEC_PUBLIC) == 0) {
                                if (accessor != NULL) {
                                    accessor->reportError(accessorCookie,
                                                          "Resource is not public.");
                                }
                                return false;
                            }
                        }
                    }

                    if (accessor) {
                        rid = Res_MAKEID(
                                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
                                Res_GETTYPE(rid), Res_GETENTRY(rid));
                        if (kDebugTableNoisy) {
                            LOGI("Incl %s:%s/%s: 0x%08x\n",
                                 String8(package).string(), String8(type).string(),
                                 String8(name).string(), rid);
                        }
                    }

                    uint32_t packageId = Res_GETPACKAGE(rid) + 1;
                    if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) {
                        outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
                    }
                    outValue->data = rid;
                    return true;
                }

                if (accessor) {
                    uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
                                                                           createIfNotFound);
                    if (rid != 0) {
                        if (kDebugTableNoisy) {
                            LOGI("Pckg %s:%s/%s: 0x%08x\n",
                                 String8(package).string(), String8(type).string(),
                                 String8(name).string(), rid);
                        }
                        uint32_t packageId = Res_GETPACKAGE(rid) + 1;
                        if (packageId == 0x00) {
                            outValue->data = rid;
                            outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
                            return true;
                        } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) {
                            // We accept packageId's generated as 0x01 in order to support
                            // building the android system resources
                            outValue->data = rid;
                            return true;
                        }
                    }
                }
            }

            if (accessor != NULL) {
                accessor->reportError(accessorCookie,
                                      "No resource found that matches the given name");
            }
            return false;
        }

        // if we got to here, and localization is required and it's not a reference,
        // complain and bail.
        if (l10nReq == ResTable_map::L10N_SUGGESTED) {
            if (localizationSetting) {
                if (accessor != NULL) {
                    accessor->reportError(accessorCookie, "This attribute must be localized.");
                }
            }
        }

        if (*s == '#') {
            // It's a color!  Convert to an integer of the form 0xaarrggbb.
            uint32_t color = 0;
            bool error = false;
            if (len == 4) {
                outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
                color |= 0xFF000000;
                color |= get_hex(s[1], &error) << 20;
                color |= get_hex(s[1], &error) << 16;
                color |= get_hex(s[2], &error) << 12;
                color |= get_hex(s[2], &error) << 8;
                color |= get_hex(s[3], &error) << 4;
                color |= get_hex(s[3], &error);
            } else if (len == 5) {
                outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
                color |= get_hex(s[1], &error) << 28;
                color |= get_hex(s[1], &error) << 24;
                color |= get_hex(s[2], &error) << 20;
                color |= get_hex(s[2], &error) << 16;
                color |= get_hex(s[3], &error) << 12;
                color |= get_hex(s[3], &error) << 8;
                color |= get_hex(s[4], &error) << 4;
                color |= get_hex(s[4], &error);
            } else if (len == 7) {
                outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
                color |= 0xFF000000;
                color |= get_hex(s[1], &error) << 20;
                color |= get_hex(s[2], &error) << 16;
                color |= get_hex(s[3], &error) << 12;
                color |= get_hex(s[4], &error) << 8;
                color |= get_hex(s[5], &error) << 4;
                color |= get_hex(s[6], &error);
            } else if (len == 9) {
                outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
                color |= get_hex(s[1], &error) << 28;
                color |= get_hex(s[2], &error) << 24;
                color |= get_hex(s[3], &error) << 20;
                color |= get_hex(s[4], &error) << 16;
                color |= get_hex(s[5], &error) << 12;
                color |= get_hex(s[6], &error) << 8;
                color |= get_hex(s[7], &error) << 4;
                color |= get_hex(s[8], &error);
            } else {
                error = true;
            }
            if (!error) {
                if ((attrType & ResTable_map::TYPE_COLOR) == 0) {
                    if (!canStringCoerce) {
                        if (accessor != NULL) {
                            accessor->reportError(accessorCookie,
                                                  "Color types not allowed");
                        }
                        return false;
                    }
                } else {
                    outValue->data = color;
                    //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
                    return true;
                }
            } else {
                if ((attrType & ResTable_map::TYPE_COLOR) != 0) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, "Color value not valid --"
                                " must be #rgb, #argb, #rrggbb, or #aarrggbb");
                    }
#if 0
                                                                                                                                            fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
                        "Resource File", //(const char*)in->getPrintableSource(),
                        String8(*curTag).string(),
                        String8(s, len).string());
#endif
                    return false;
                }
            }
        }

        if (*s == '?') {
            outValue->dataType = outValue->TYPE_ATTRIBUTE;

            // Note: we don't check attrType here because the reference can
            // be to any other type; we just need to count on the client making
            // sure the referenced type is correct.

            //printf("Looking up attr: %s\n", String8(s, len).string());

            static const String16 attr16("attr");
            String16 package, type, name;
            if (!expandResourceRef(s + 1, len - 1, &package, &type, &name,
                                   &attr16, defPackage, &errorMsg)) {
                if (accessor != NULL) {
                    accessor->reportError(accessorCookie, errorMsg);
                }
                return false;
            }

            //printf("Pkg: %s, Type: %s, Name: %s\n",
            //       String8(package).string(), String8(type).string(),
            //       String8(name).string());
            uint32_t specFlags = 0;
            uint32_t rid =
                    identifierForName(name.string(), name.size(),
                                      type.string(), type.size(),
                                      package.string(), package.size(), &specFlags);
            if (rid != 0) {
                if (enforcePrivate) {
                    if ((specFlags & ResTable_typeSpec::SPEC_PUBLIC) == 0) {
                        if (accessor != NULL) {
                            accessor->reportError(accessorCookie, "Attribute is not public.");
                        }
                        return false;
                    }
                }

                if (accessor) {
                    rid = Res_MAKEID(
                            accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
                            Res_GETTYPE(rid), Res_GETENTRY(rid));
                }

                uint32_t packageId = Res_GETPACKAGE(rid) + 1;
                if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) {
                    outValue->dataType = Res_value::TYPE_DYNAMIC_ATTRIBUTE;
                }
                outValue->data = rid;
                return true;
            }

            if (accessor) {
                uint32_t rid = accessor->getCustomResource(package, type, name);
                if (rid != 0) {
                    uint32_t packageId = Res_GETPACKAGE(rid) + 1;
                    if (packageId == 0x00) {
                        outValue->data = rid;
                        outValue->dataType = Res_value::TYPE_DYNAMIC_ATTRIBUTE;
                        return true;
                    } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) {
                        // We accept packageId's generated as 0x01 in order to support
                        // building the android system resources
                        outValue->data = rid;
                        return true;
                    }
                }
            }

            if (accessor != NULL) {
                accessor->reportError(accessorCookie,
                                      "No resource found that matches the given name");
            }
            return false;
        }

        if (stringToInt(s, len, outValue)) {
            if ((attrType & ResTable_map::TYPE_INTEGER) == 0) {
                // If this type does not allow integers, but does allow floats,
                // fall through on this error case because the float type should
                // be able to accept any integer value.
                if (!canStringCoerce && (attrType & ResTable_map::TYPE_FLOAT) == 0) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, "Integer types not allowed");
                    }
                    return false;
                }
            } else {
                if (((int32_t) outValue->data) < ((int32_t) attrMin)
                    || ((int32_t) outValue->data) > ((int32_t) attrMax)) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, "Integer value out of range");
                    }
                    return false;
                }
                return true;
            }
        }

        if (stringToFloat(s, len, outValue)) {
            if (outValue->dataType == Res_value::TYPE_DIMENSION) {
                if ((attrType & ResTable_map::TYPE_DIMENSION) != 0) {
                    return true;
                }
                if (!canStringCoerce) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, "Dimension types not allowed");
                    }
                    return false;
                }
            } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
                if ((attrType & ResTable_map::TYPE_FRACTION) != 0) {
                    return true;
                }
                if (!canStringCoerce) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, "Fraction types not allowed");
                    }
                    return false;
                }
            } else if ((attrType & ResTable_map::TYPE_FLOAT) == 0) {
                if (!canStringCoerce) {
                    if (accessor != NULL) {
                        accessor->reportError(accessorCookie, "Float types not allowed");
                    }
                    return false;
                }
            } else {
                return true;
            }
        }

        if (len == 4) {
            if ((s[0] == 't' || s[0] == 'T') &&
                (s[1] == 'r' || s[1] == 'R') &&
                (s[2] == 'u' || s[2] == 'U') &&
                (s[3] == 'e' || s[3] == 'E')) {
                if ((attrType & ResTable_map::TYPE_BOOLEAN) == 0) {
                    if (!canStringCoerce) {
                        if (accessor != NULL) {
                            accessor->reportError(accessorCookie, "Boolean types not allowed");
                        }
                        return false;
                    }
                } else {
                    outValue->dataType = outValue->TYPE_INT_BOOLEAN;
                    outValue->data = (uint32_t) -1;
                    return true;
                }
            }
        }

        if (len == 5) {
            if ((s[0] == 'f' || s[0] == 'F') &&
                (s[1] == 'a' || s[1] == 'A') &&
                (s[2] == 'l' || s[2] == 'L') &&
                (s[3] == 's' || s[3] == 'S') &&
                (s[4] == 'e' || s[4] == 'E')) {
                if ((attrType & ResTable_map::TYPE_BOOLEAN) == 0) {
                    if (!canStringCoerce) {
                        if (accessor != NULL) {
                            accessor->reportError(accessorCookie, "Boolean types not allowed");
                        }
                        return false;
                    }
                } else {
                    outValue->dataType = outValue->TYPE_INT_BOOLEAN;
                    outValue->data = 0;
                    return true;
                }
            }
        }

        if ((attrType & ResTable_map::TYPE_ENUM) != 0) {
            const ssize_t p = getResourcePackageIndex(attrID);
            const bag_entry *bag;
            ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
            //printf("Got %d for enum\n", cnt);
            if (cnt >= 0) {
                resource_name rname;
                while (cnt > 0) {
                    if (!Res_INTERNALID(bag->map.name.ident)) {
                        //printf("Trying attr #%08x\n", bag->map.name.ident);
                        if (getResourceName(bag->map.name.ident, false, &rname)) {
#if 0
                                                                                                                                                    printf("Matching %s against %s (0x%08x)\n",
                               String8(s, len).string(),
                               String8(rname.name, rname.nameLen).string(),
                               bag->map.name.ident);
#endif
                            if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
                                outValue->dataType = bag->map.value.dataType;
                                outValue->data = bag->map.value.data;
                                unlockBag(bag);
                                return true;
                            }
                        }

                    }
                    bag++;
                    cnt--;
                }
                unlockBag(bag);
            }

            if (fromAccessor) {
                if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
                    return true;
                }
            }
        }

        if ((attrType & ResTable_map::TYPE_FLAGS) != 0) {
            const ssize_t p = getResourcePackageIndex(attrID);
            const bag_entry *bag;
            ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
            //printf("Got %d for flags\n", cnt);
            if (cnt >= 0) {
                bool failed = false;
                resource_name rname;
                outValue->dataType = Res_value::TYPE_INT_HEX;
                outValue->data = 0;
                const char16_t *end = s + len;
                const char16_t *pos = s;
                while (pos < end && !failed) {
                    const char16_t *start = pos;
                    pos++;
                    while (pos < end && *pos != '|') {
                        pos++;
                    }
                    //printf("Looking for: %s\n", String8(start, pos-start).string());
                    const bag_entry *bagi = bag;
                    ssize_t i;
                    for (i = 0; i < cnt; i++, bagi++) {
                        if (!Res_INTERNALID(bagi->map.name.ident)) {
                            //printf("Trying attr #%08x\n", bagi->map.name.ident);
                            if (getResourceName(bagi->map.name.ident, false, &rname)) {
#if 0
                                                                                                                                                        printf("Matching %s against %s (0x%08x)\n",
                                   String8(start,pos-start).string(),
                                   String8(rname.name, rname.nameLen).string(),
                                   bagi->map.name.ident);
#endif
                                if (strzcmp16(start, pos - start, rname.name, rname.nameLen) == 0) {
                                    outValue->data |= bagi->map.value.data;
                                    break;
                                }
                            }
                        }
                    }
                    if (i >= cnt) {
                        // Didn't find this flag identifier.
                        failed = true;
                    }
                    if (pos < end) {
                        pos++;
                    }
                }
                unlockBag(bag);
                if (!failed) {
                    //printf("Final flag value: 0x%lx\n", outValue->data);
                    return true;
                }
            }


            if (fromAccessor) {
                if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
                    //printf("Final flag value: 0x%lx\n", outValue->data);
                    return true;
                }
            }
        }

        if ((attrType & ResTable_map::TYPE_STRING) == 0) {
            if (accessor != NULL) {
                accessor->reportError(accessorCookie, "String types not allowed");
            }
            return false;
        }

        // Generic string handling...
        outValue->dataType = outValue->TYPE_STRING;
        if (outString) {
            bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
            if (accessor != NULL) {
                accessor->reportError(accessorCookie, errorMsg);
            }
            return failed;
        }

        return true;
    }

    bool ResTable::collectString(String16 *outString,
                                 const char16_t *s, size_t len,
                                 bool preserveSpaces,
                                 const char **outErrorMsg,
                                 bool append) {
        String16 tmp;

        char quoted = 0;
        const char16_t *p = s;
        while (p < (s + len)) {
            while (p < (s + len)) {
                const char16_t c = *p;
                if (c == '\\') {
                    break;
                }
                if (!preserveSpaces) {
                    if (quoted == 0 && isspace16(c)
                        && (c != ' ' || isspace16(*(p + 1)))) {
                        break;
                    }
                    if (c == '"' && (quoted == 0 || quoted == '"')) {
                        break;
                    }
                    if (c == '\'' && (quoted == 0 || quoted == '\'')) {
                        /*
                     * In practice, when people write ' instead of \'
                     * in a string, they are doing it by accident
                     * instead of really meaning to use ' as a quoting
                     * character.  Warn them so they don't lose it.
                     */
                        if (outErrorMsg) {
                            *outErrorMsg = "Apostrophe not preceded by \\";
                        }
                        return false;
                    }
                }
                p++;
            }
            if (p < (s + len)) {
                if (p > s) {
                    tmp.append(String16(s, p - s));
                }
                if (!preserveSpaces && (*p == '"' || *p == '\'')) {
                    if (quoted == 0) {
                        quoted = *p;
                    } else {
                        quoted = 0;
                    }
                    p++;
                } else if (!preserveSpaces && isspace16(*p)) {
                    // Space outside of a quote -- consume all spaces and
                    // leave a single plain space char.
                    tmp.append(String16(" "));
                    p++;
                    while (p < (s + len) && isspace16(*p)) {
                        p++;
                    }
                } else if (*p == '\\') {
                    p++;
                    if (p < (s + len)) {
                        switch (*p) {
                            case 't':
                                tmp.append(String16("\t"));
                                break;
                            case 'n':
                                tmp.append(String16("\n"));
                                break;
                            case '#':
                                tmp.append(String16("#"));
                                break;
                            case '@':
                                tmp.append(String16("@"));
                                break;
                            case '?':
                                tmp.append(String16("?"));
                                break;
                            case '"':
                                tmp.append(String16("\""));
                                break;
                            case '\'':
                                tmp.append(String16("'"));
                                break;
                            case '\\':
                                tmp.append(String16("\\"));
                                break;
                            case 'u': {
                                char16_t chr = 0;
                                int i = 0;
                                while (i < 4 && p[1] != 0) {
                                    p++;
                                    i++;
                                    int c;
                                    if (*p >= '0' && *p <= '9') {
                                        c = *p - '0';
                                    } else if (*p >= 'a' && *p <= 'f') {
                                        c = *p - 'a' + 10;
                                    } else if (*p >= 'A' && *p <= 'F') {
                                        c = *p - 'A' + 10;
                                    } else {
                                        if (outErrorMsg) {
                                            *outErrorMsg = "Bad character in \\u unicode escape sequence";
                                        }
                                        return false;
                                    }
                                    chr = (chr << 4) | c;
                                }
                                tmp.append(String16(&chr, 1));
                            }
                                break;
                            default:
                                // ignore unknown escape chars.
                                break;
                        }
                        p++;
                    }
                }
                len -= (p - s);
                s = p;
            }
        }

        if (tmp.size() != 0) {
            if (len > 0) {
                tmp.append(String16(s, len));
            }
            if (append) {
                outString->append(tmp);
            } else {
                outString->setTo(tmp);
            }
        } else {
            if (append) {
                outString->append(String16(s, len));
            } else {
                outString->setTo(s, len);
            }
        }

        return true;
    }

    size_t ResTable::getBasePackageCount() const {
        if (mError != NO_ERROR) {
            return 0;
        }
        return mPackageGroups.size();
    }

    const String16 ResTable::getBasePackageName(size_t idx) const {
        if (mError != NO_ERROR) {
            return String16();
        }
        LOG_FATAL_IF(idx >= mPackageGroups.size(),
                     "Requested package index %d past package count %d",
                     (int) idx, (int) mPackageGroups.size());
        return mPackageGroups[idx]->name;
    }

    uint32_t ResTable::getBasePackageId(size_t idx) const {
        if (mError != NO_ERROR) {
            return 0;
        }
        LOG_FATAL_IF(idx >= mPackageGroups.size(),
                     "Requested package index %d past package count %d",
                     (int) idx, (int) mPackageGroups.size());
        return mPackageGroups[idx]->id;
    }

    uint32_t ResTable::getLastTypeIdForPackage(size_t idx) const {
        if (mError != NO_ERROR) {
            return 0;
        }
        LOG_FATAL_IF(idx >= mPackageGroups.size(),
                     "Requested package index %d past package count %d",
                     (int) idx, (int) mPackageGroups.size());
        const PackageGroup *const group = mPackageGroups[idx];
        return group->largestTypeId;
    }

    size_t ResTable::getTableCount() const {
        return mHeaders.size();
    }

    const ResStringPool *ResTable::getTableStringBlock(size_t index) const {
        return &mHeaders[index]->values;
    }

    int32_t ResTable::getTableCookie(size_t index) const {
        return mHeaders[index]->cookie;
    }

    const DynamicRefTable *ResTable::getDynamicRefTableForCookie(int32_t cookie) const {
        const size_t N = mPackageGroups.size();
        for (size_t i = 0; i < N; i++) {
            const PackageGroup *pg = mPackageGroups[i];
            size_t M = pg->packages.size();
            for (size_t j = 0; j < M; j++) {
                if (pg->packages[j]->header->cookie == cookie) {
                    return &pg->dynamicRefTable;
                }
            }
        }
        return NULL;
    }

    static bool compareResTableConfig(const ResTable_config &a, const ResTable_config &b) {
        return a.compare(b) < 0;
    }

    template<typename Func>
    void ResTable::forEachConfiguration(bool ignoreMipmap, bool ignoreAndroidPackage,
                                        bool includeSystemConfigs, const Func &f) const {
        const size_t packageCount = mPackageGroups.size();
        const String16 android("android");
        for (size_t i = 0; i < packageCount; i++) {
            const PackageGroup *packageGroup = mPackageGroups[i];
            if (ignoreAndroidPackage && android == packageGroup->name) {
                continue;
            }
            if (!includeSystemConfigs && packageGroup->isSystemAsset) {
                continue;
            }
            const size_t typeCount = packageGroup->types.size();
            for (size_t j = 0; j < typeCount; j++) {
                const TypeList &typeList = packageGroup->types[j];
                const size_t numTypes = typeList.size();
                for (size_t k = 0; k < numTypes; k++) {
                    const Type *type = typeList[k];
                    const ResStringPool &typeStrings = type->package->typeStrings;
                    if (ignoreMipmap && typeStrings.string8ObjectAt(
                            type->typeSpec->id - 1) == "mipmap") {
                        continue;
                    }

                    const size_t numConfigs = type->configs.size();
                    for (size_t m = 0; m < numConfigs; m++) {
                        const ResTable_type *config = type->configs[m];
                        ResTable_config cfg;
                        memset(&cfg, 0, sizeof(ResTable_config));
                        cfg.copyFromDtoH(config->config);

                        f(cfg);
                    }
                }
            }
        }
    }

    void ResTable::getConfigurations(Vector<ResTable_config> *configs, bool ignoreMipmap,
                                     bool ignoreAndroidPackage, bool includeSystemConfigs) const {
        auto func = [&](const ResTable_config &cfg) {
            const auto beginIter = configs->begin();
            const auto endIter = configs->end();

            auto iter = std::lower_bound(beginIter, endIter, cfg, compareResTableConfig);
            if (iter == endIter || iter->compare(cfg) != 0) {
                configs->insertAt(cfg, std::distance(beginIter, iter));
            }
        };
        forEachConfiguration(ignoreMipmap, ignoreAndroidPackage, includeSystemConfigs, func);
    }

    static bool compareString8AndCString(const String8 &str, const char *cStr) {
        return strcmp(str.string(), cStr) < 0;
    }

    void ResTable::getLocales(Vector<String8> *locales, bool includeSystemLocales) const {
        char locale[RESTABLE_MAX_LOCALE_LEN];

        forEachConfiguration(false, false, includeSystemLocales, [&](const ResTable_config &cfg) {
            if (cfg.locale != 0) {
                cfg.getBcp47Locale(locale);

                const auto beginIter = locales->begin();
                const auto endIter = locales->end();

                auto iter = std::lower_bound(beginIter, endIter, locale, compareString8AndCString);
                if (iter == endIter || strcmp(iter->string(), locale) != 0) {
                    locales->insertAt(String8(locale), std::distance(beginIter, iter));
                }
            }
        });
    }

    StringPoolRef::StringPoolRef(const ResStringPool *pool, uint32_t index)
            : mPool(pool), mIndex(index) {}

    StringPoolRef::StringPoolRef()
            : mPool(NULL), mIndex(0) {}

    const char *StringPoolRef::string8(size_t *outLen) const {
        if (mPool != NULL) {
            return mPool->string8At(mIndex, outLen);
        }
        if (outLen != NULL) {
            *outLen = 0;
        }
        return NULL;
    }

    const char16_t *StringPoolRef::string16(size_t *outLen) const {
        if (mPool != NULL) {
            return mPool->stringAt(mIndex, outLen);
        }
        if (outLen != NULL) {
            *outLen = 0;
        }
        return NULL;
    }

    bool ResTable::getResourceFlags(uint32_t resID, uint32_t *outFlags) const {
        if (mError != NO_ERROR) {
            return false;
        }

        const ssize_t p = getResourcePackageIndex(resID);
        const int t = Res_GETTYPE(resID);
        const int e = Res_GETENTRY(resID);

        if (p < 0) {
            if (Res_GETPACKAGE(resID) + 1 == 0) {
                ALOGW("No package identifier when getting flags for resource number 0x%08x", resID);
            } else {
                ALOGW("No known package when getting flags for resource number 0x%08x", resID);
            }
            return false;
        }
        if (t < 0) {
            ALOGW("No type identifier when getting flags for resource number 0x%08x", resID);
            return false;
        }

        const PackageGroup *const grp = mPackageGroups[p];
        if (grp == NULL) {
            ALOGW("Bad identifier when getting flags for resource number 0x%08x", resID);
            return false;
        }

        Entry entry;
        status_t err = getEntry(grp, t, e, NULL, &entry);
        if (err != NO_ERROR) {
            return false;
        }

        *outFlags = entry.specFlags;
        return true;
    }

    status_t ResTable::getEntry(
            const PackageGroup *packageGroup, int typeIndex, int entryIndex,
            const ResTable_config *config,
            Entry *outEntry) const {
        const TypeList &typeList = packageGroup->types[typeIndex];
        if (typeList.isEmpty()) {
            ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
            return BAD_TYPE;
        }

        const ResTable_type *bestType = NULL;
        uint32_t bestOffset = ResTable_type::NO_ENTRY;
        const Package *bestPackage = NULL;
        uint32_t specFlags = 0;
        uint8_t actualTypeIndex = typeIndex;
        ResTable_config bestConfig;
        memset(&bestConfig, 0, sizeof(bestConfig));

        // Iterate over the Types of each package.
        const size_t typeCount = typeList.size();
        for (size_t i = 0; i < typeCount; i++) {
            const Type *const typeSpec = typeList[i];

            int realEntryIndex = entryIndex;
            int realTypeIndex = typeIndex;
            bool currentTypeIsOverlay = false;

            // Runtime overlay packages provide a mapping of app resource
            // ID to package resource ID.
            if (typeSpec->idmapEntries.hasEntries()) {
                uint16_t overlayEntryIndex;
                if (typeSpec->idmapEntries.lookup(entryIndex, &overlayEntryIndex) != NO_ERROR) {
                    // No such mapping exists
                    continue;
                }
                realEntryIndex = overlayEntryIndex;
                realTypeIndex = typeSpec->idmapEntries.overlayTypeId() - 1;
                currentTypeIsOverlay = true;
            }

            if (static_cast<size_t>(realEntryIndex) >= typeSpec->entryCount) {
                ALOGW("For resource 0x%08x, entry index(%d) is beyond type entryCount(%d)",
                      Res_MAKEID(packageGroup->id - 1, typeIndex, entryIndex),
                      entryIndex, static_cast<int>(typeSpec->entryCount));
                // We should normally abort here, but some legacy apps declare
                // resources in the 'android' package (old bug in AAPT).
                continue;
            }

            // Aggregate all the flags for each package that defines this entry.
            if (typeSpec->typeSpecFlags != NULL) {
                specFlags |= dtohl(typeSpec->typeSpecFlags[realEntryIndex]);
            } else {
                specFlags = -1;
            }

            const Vector<const ResTable_type *> *candidateConfigs = &typeSpec->configs;

            std::shared_ptr<Vector<const ResTable_type *>> filteredConfigs;
            if (config && memcmp(&mParams, config, sizeof(mParams)) == 0) {
                // Grab the lock first so we can safely get the current filtered list.
                AutoMutex _lock(mFilteredConfigLock);

                // This configuration is equal to the one we have previously cached for,
                // so use the filtered configs.

                const TypeCacheEntry &cacheEntry = packageGroup->typeCacheEntries[typeIndex];
                if (i < cacheEntry.filteredConfigs.size()) {
                    if (cacheEntry.filteredConfigs[i]) {
                        // Grab a reference to the shared_ptr so it doesn't get destroyed while
                        // going through this list.
                        filteredConfigs = cacheEntry.filteredConfigs[i];

                        // Use this filtered list.
                        candidateConfigs = filteredConfigs.get();
                    }
                }
            }

            const size_t numConfigs = candidateConfigs->size();
            for (size_t c = 0; c < numConfigs; c++) {
                const ResTable_type *const thisType = candidateConfigs->itemAt(c);
                if (thisType == NULL) {
                    continue;
                }

                ResTable_config thisConfig;
                thisConfig.copyFromDtoH(thisType->config);

                // Check to make sure this one is valid for the current parameters.
                if (config != NULL && !thisConfig.match(*config)) {
                    continue;
                }

                // Check if there is the desired entry in this type.
                const uint32_t *const eindex = reinterpret_cast<const uint32_t *>(
                        reinterpret_cast<const uint8_t *>(thisType) +
                        dtohs(thisType->header.headerSize));

                uint32_t thisOffset = dtohl(eindex[realEntryIndex]);
                if (thisOffset == ResTable_type::NO_ENTRY) {
                    // There is no entry for this index and configuration.
                    continue;
                }

                if (bestType != NULL) {
                    // Check if this one is less specific than the last found.  If so,
                    // we will skip it.  We check starting with things we most care
                    // about to those we least care about.
                    if (!thisConfig.isBetterThan(bestConfig, config)) {
                        if (!currentTypeIsOverlay || thisConfig.compare(bestConfig) != 0) {
                            continue;
                        }
                    }
                }

                bestType = thisType;
                bestOffset = thisOffset;
                bestConfig = thisConfig;
                bestPackage = typeSpec->package;
                actualTypeIndex = realTypeIndex;

                // If no config was specified, any type will do, so skip
                if (config == NULL) {
                    break;
                }
            }
        }

        if (bestType == NULL) {
            return BAD_INDEX;
        }

        bestOffset += dtohl(bestType->entriesStart);

        if (bestOffset > (dtohl(bestType->header.size) - sizeof(ResTable_entry))) {
            ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
                  bestOffset, dtohl(bestType->header.size));
            return BAD_TYPE;
        }
        if ((bestOffset & 0x3) != 0) {
            ALOGW("ResTable_entry at 0x%x is not on an integer boundary", bestOffset);
            return BAD_TYPE;
        }

        const ResTable_entry *const entry = reinterpret_cast<const ResTable_entry *>(
                reinterpret_cast<const uint8_t *>(bestType) + bestOffset);
        if (dtohs(entry->size) < sizeof(*entry)) {
            ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
            return BAD_TYPE;
        }

        if (outEntry != NULL) {
            outEntry->entry = entry;
            outEntry->config = bestConfig;
            outEntry->type = bestType;
            outEntry->specFlags = specFlags;
            outEntry->package = bestPackage;
            outEntry->typeStr = StringPoolRef(&bestPackage->typeStrings,
                                              actualTypeIndex - bestPackage->typeIdOffset);
            outEntry->keyStr = StringPoolRef(&bestPackage->keyStrings, dtohl(entry->key.index));
        }
        return NO_ERROR;
    }

    status_t ResTable::parsePackage(const ResTable_package *const pkg,
                                    const Header *const header, bool appAsLib, bool isSystemAsset) {
        const uint8_t *base = (const uint8_t *) pkg;
        status_t err = validate_chunk(&pkg->header, sizeof(*pkg) - sizeof(pkg->typeIdOffset),
                                      header->dataEnd, "ResTable_package");
        if (err != NO_ERROR) {
            return (mError = err);
        }

        const uint32_t pkgSize = dtohl(pkg->header.size);

        if (dtohl(pkg->typeStrings) >= pkgSize) {
            ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.",
                  dtohl(pkg->typeStrings), pkgSize);
            return (mError = BAD_TYPE);
        }
        if ((dtohl(pkg->typeStrings) & 0x3) != 0) {
            ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.",
                  dtohl(pkg->typeStrings));
            return (mError = BAD_TYPE);
        }
        if (dtohl(pkg->keyStrings) >= pkgSize) {
            ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.",
                  dtohl(pkg->keyStrings), pkgSize);
            return (mError = BAD_TYPE);
        }
        if ((dtohl(pkg->keyStrings) & 0x3) != 0) {
            ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.",
                  dtohl(pkg->keyStrings));
            return (mError = BAD_TYPE);
        }

        uint32_t id = dtohl(pkg->id);
        KeyedVector<uint8_t, IdmapEntries> idmapEntries;

        if (header->resourceIDMap != NULL) {
            uint8_t targetPackageId = 0;
            status_t err = parseIdmap(header->resourceIDMap, header->resourceIDMapSize,
                                      &targetPackageId, &idmapEntries);
            if (err != NO_ERROR) {
                ALOGW("Overlay is broken");
                return (mError = err);
            }
            id = targetPackageId;
        }

        if (id >= 256) {
            LOG_ALWAYS_FATAL("Package id out of range");
            return NO_ERROR;
        } else if (id == 0 || (id == 0x7f && appAsLib) || isSystemAsset) {
            // This is a library or a system asset, so assign an ID
            id = mNextPackageId++;
        }

        PackageGroup *group = NULL;
        Package *package = new Package(this, header, pkg);
        if (package == NULL) {
            return (mError = NO_MEMORY);
        }

        err = package->typeStrings.setTo(base + dtohl(pkg->typeStrings),
                                         header->dataEnd - (base + dtohl(pkg->typeStrings)));
        if (err != NO_ERROR) {
            delete group;
            delete package;
            return (mError = err);
        }

        err = package->keyStrings.setTo(base + dtohl(pkg->keyStrings),
                                        header->dataEnd - (base + dtohl(pkg->keyStrings)));
        if (err != NO_ERROR) {
            delete group;
            delete package;
            return (mError = err);
        }

        size_t idx = mPackageMap[id];
        if (idx == 0) {
            idx = mPackageGroups.size() + 1;

            char16_t tmpName[sizeof(pkg->name) / sizeof(pkg->name[0])];
            strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name) / sizeof(pkg->name[0]));
            group = new PackageGroup(this, String16(tmpName), id, appAsLib, isSystemAsset);
            if (group == NULL) {
                delete package;
                return (mError = NO_MEMORY);
            }

            err = mPackageGroups.add(group);
            if (err < NO_ERROR) {
                return (mError = err);
            }

            mPackageMap[id] = static_cast<uint8_t>(idx);

            // Find all packages that reference this package
            size_t N = mPackageGroups.size();
            for (size_t i = 0; i < N; i++) {
                mPackageGroups[i]->dynamicRefTable.addMapping(
                        group->name, static_cast<uint8_t>(group->id));
            }
        } else {
            group = mPackageGroups.itemAt(idx - 1);
            if (group == NULL) {
                return (mError = UNKNOWN_ERROR);
            }
        }

        err = group->packages.add(package);
        if (err < NO_ERROR) {
            return (mError = err);
        }

        // Iterate through all chunks.
        const ResChunk_header *chunk =
                (const ResChunk_header *) (((const uint8_t *) pkg)
                                           + dtohs(pkg->header.headerSize));
        const uint8_t *endPos = ((const uint8_t *) pkg) + dtohs(pkg->header.size);
        while (((const uint8_t *) chunk) <= (endPos - sizeof(ResChunk_header)) &&
               ((const uint8_t *) chunk) <= (endPos - dtohl(chunk->size))) {
            if (kDebugTableNoisy) {
                ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
                      dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
                      (void *) (((const uint8_t *) chunk) - ((const uint8_t *) header->header)));
            }
            const size_t csize = dtohl(chunk->size);
            const uint16_t ctype = dtohs(chunk->type);
            if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
                const ResTable_typeSpec *typeSpec = (const ResTable_typeSpec *) (chunk);
                err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
                                     endPos, "ResTable_typeSpec");
                if (err != NO_ERROR) {
                    return (mError = err);
                }

                const size_t typeSpecSize = dtohl(typeSpec->header.size);
                const size_t newEntryCount = dtohl(typeSpec->entryCount);

                if (kDebugLoadTableNoisy) {
                    LOGI("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
                         (void *) (base - (const uint8_t *) chunk),
                         dtohs(typeSpec->header.type),
                         dtohs(typeSpec->header.headerSize),
                         (void *) typeSpecSize);
                }
                // look for block overrun or int overflow when multiplying by 4
                if ((dtohl(typeSpec->entryCount) > (INT32_MAX / sizeof(uint32_t))
                     || dtohs(typeSpec->header.headerSize) + (sizeof(uint32_t) * newEntryCount)
                        > typeSpecSize)) {
                    ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
                          (void *) (dtohs(typeSpec->header.headerSize) +
                                    (sizeof(uint32_t) * newEntryCount)),
                          (void *) typeSpecSize);
                    return (mError = BAD_TYPE);
                }

                if (typeSpec->id == 0) {
                    ALOGW("ResTable_type has an id of 0.");
                    return (mError = BAD_TYPE);
                }

                if (newEntryCount > 0) {
                    uint8_t typeIndex = typeSpec->id - 1;
                    ssize_t idmapIndex = idmapEntries.indexOfKey(typeSpec->id);
                    if (idmapIndex >= 0) {
                        typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
                    }

                    TypeList &typeList = group->types.editItemAt(typeIndex);
                    if (!typeList.isEmpty()) {
                        const Type *existingType = typeList[0];
                        if (existingType->entryCount != newEntryCount && idmapIndex < 0) {
                            ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
                                  (int) newEntryCount, (int) existingType->entryCount);
                            // We should normally abort here, but some legacy apps declare
                            // resources in the 'android' package (old bug in AAPT).
                        }
                    }

                    Type *t = new Type(header, package, newEntryCount);
                    t->typeSpec = typeSpec;
                    t->typeSpecFlags = (const uint32_t *) (
                            ((const uint8_t *) typeSpec) + dtohs(typeSpec->header.headerSize));
                    if (idmapIndex >= 0) {
                        t->idmapEntries = idmapEntries[idmapIndex];
                    }
                    typeList.add(t);
                    group->largestTypeId = max(group->largestTypeId, typeSpec->id);
                } else {
                    ALOGV("Skipping empty ResTable_typeSpec for type %d", typeSpec->id);
                }

            } else if (ctype == RES_TABLE_TYPE_TYPE) {
                const ResTable_type *type = (const ResTable_type *) (chunk);
                err = validate_chunk(&type->header, sizeof(*type) - sizeof(ResTable_config) + 4,
                                     endPos, "ResTable_type");
                if (err != NO_ERROR) {
                    return (mError = err);
                }

                const uint32_t typeSize = dtohl(type->header.size);
                const size_t newEntryCount = dtohl(type->entryCount);

                if (kDebugLoadTableNoisy) {
                    printf("Type off %p: type=0x%x, headerSize=0x%x, size=%u\n",
                           (void *) (base - (const uint8_t *) chunk),
                           dtohs(type->header.type),
                           dtohs(type->header.headerSize),
                           typeSize);
                }
                if (dtohs(type->header.headerSize) + (sizeof(uint32_t) * newEntryCount) >
                    typeSize) {
                    ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.",
                          (void *) (dtohs(type->header.headerSize) +
                                    (sizeof(uint32_t) * newEntryCount)),
                          typeSize);
                    return (mError = BAD_TYPE);
                }

                if (newEntryCount != 0
                    && dtohl(type->entriesStart) > (typeSize - sizeof(ResTable_entry))) {
                    ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.",
                          dtohl(type->entriesStart), typeSize);
                    return (mError = BAD_TYPE);
                }

                if (type->id == 0) {
                    ALOGW("ResTable_type has an id of 0.");
                    return (mError = BAD_TYPE);
                }

                if (newEntryCount > 0) {
                    uint8_t typeIndex = type->id - 1;
                    ssize_t idmapIndex = idmapEntries.indexOfKey(type->id);
                    if (idmapIndex >= 0) {
                        typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
                    }

                    TypeList &typeList = group->types.editItemAt(typeIndex);
                    if (typeList.isEmpty()) {
                        ALOGE("No TypeSpec for type %d", type->id);
                        return (mError = BAD_TYPE);
                    }

                    Type *t = typeList.editItemAt(typeList.size() - 1);
                    if (newEntryCount != t->entryCount) {
                        ALOGE("ResTable_type entry count inconsistent: given %d, previously %d",
                              (int) newEntryCount, (int) t->entryCount);
                        return (mError = BAD_TYPE);
                    }

                    if (t->package != package) {
                        ALOGE("No TypeSpec for type %d", type->id);
                        return (mError = BAD_TYPE);
                    }

                    t->configs.add(type);

                    if (kDebugTableGetEntry) {
                        ResTable_config thisConfig;
                        thisConfig.copyFromDtoH(type->config);
                        LOGI("Adding config to type %d: %s\n", type->id,
                             thisConfig.toString().string());
                    }
                } else {
                    ALOGV("Skipping empty ResTable_type for type %d", type->id);
                }

            } else if (ctype == RES_TABLE_LIBRARY_TYPE) {
                if (group->dynamicRefTable.entries().size() == 0) {
                    status_t err = group->dynamicRefTable.load((const ResTable_lib_header *) chunk);
                    if (err != NO_ERROR) {
                        return (mError = err);
                    }

                    // Fill in the reference table with the entries we already know about.
                    size_t N = mPackageGroups.size();
                    for (size_t i = 0; i < N; i++) {
                        group->dynamicRefTable.addMapping(mPackageGroups[i]->name,
                                                          mPackageGroups[i]->id);
                    }
                } else {
                    ALOGW("Found multiple library tables, ignoring...");
                }
            } else {
                status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
                                              endPos, "ResTable_package:unknown");
                if (err != NO_ERROR) {
                    return (mError = err);
                }
            }
            chunk = (const ResChunk_header *)
                    (((const uint8_t *) chunk) + csize);
        }

        return NO_ERROR;
    }

    DynamicRefTable::DynamicRefTable(uint8_t packageId, bool appAsLib)
            : mAssignedPackageId(packageId), mAppAsLib(appAsLib) {
        memset(mLookupTable, 0, sizeof(mLookupTable));

        // Reserved package ids
        mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID;
        mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID;
    }

    status_t DynamicRefTable::load(const ResTable_lib_header *const header) {
        const uint32_t entryCount = dtohl(header->count);
        const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount;
        const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize);
        if (sizeOfEntries > expectedSize) {
            ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).",
                  expectedSize, entryCount, (uint32_t) sizeof(ResTable_lib_entry));
            return UNKNOWN_ERROR;
        }

        const ResTable_lib_entry *entry = (const ResTable_lib_entry *) (((uint8_t *) header) +
                                                                        dtohl(header->header.headerSize));
        for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) {
            uint32_t packageId = dtohl(entry->packageId);
            char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)];
            strcpy16_dtoh(tmpName, entry->packageName,
                          sizeof(entry->packageName) / sizeof(char16_t));
            if (kDebugLibNoisy) {
                ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(),
                      dtohl(entry->packageId));
            }
            if (packageId >= 256) {
                ALOGE("Bad package id 0x%08x", packageId);
                return UNKNOWN_ERROR;
            }
            mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId);
            entry = entry + 1;
        }
        return NO_ERROR;
    }

    status_t DynamicRefTable::addMappings(const DynamicRefTable &other) {
        if (mAssignedPackageId != other.mAssignedPackageId) {
            return UNKNOWN_ERROR;
        }

        const size_t entryCount = other.mEntries.size();
        for (size_t i = 0; i < entryCount; i++) {
            ssize_t index = mEntries.indexOfKey(other.mEntries.keyAt(i));
            if (index < 0) {
                mEntries.add(other.mEntries.keyAt(i), other.mEntries[i]);
            } else {
                if (other.mEntries[i] != mEntries[index]) {
                    return UNKNOWN_ERROR;
                }
            }
        }

        // Merge the lookup table. No entry can conflict
        // (value of 0 means not set).
        for (size_t i = 0; i < 256; i++) {
            if (mLookupTable[i] != other.mLookupTable[i]) {
                if (mLookupTable[i] == 0) {
                    mLookupTable[i] = other.mLookupTable[i];
                } else if (other.mLookupTable[i] != 0) {
                    return UNKNOWN_ERROR;
                }
            }
        }
        return NO_ERROR;
    }

    status_t DynamicRefTable::addMapping(const String16 &packageName, uint8_t packageId) {
        ssize_t index = mEntries.indexOfKey(packageName);
        if (index < 0) {
            return UNKNOWN_ERROR;
        }
        mLookupTable[mEntries.valueAt(index)] = packageId;
        return NO_ERROR;
    }

    status_t DynamicRefTable::lookupResourceId(uint32_t *resId) const {
        uint32_t res = *resId;
        size_t packageId = Res_GETPACKAGE(res) + 1;

        if (packageId == APP_PACKAGE_ID && !mAppAsLib) {
            // No lookup needs to be done, app package IDs are absolute.
            return NO_ERROR;
        }

        if (packageId == 0 || (packageId == APP_PACKAGE_ID && mAppAsLib)) {
            // The package ID is 0x00. That means that a shared library is accessing
            // its own local resource.
            // Or if app resource is loaded as shared library, the resource which has
            // app package Id is local resources.
            // so we fix up those resources with the calling package ID.
            *resId = (0xFFFFFF & (*resId)) | (((uint32_t) mAssignedPackageId) << 24);
            return NO_ERROR;
        }

        // Do a proper lookup.
        uint8_t translatedId = mLookupTable[packageId];
        if (translatedId == 0) {
            ALOGV("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.",
                  (uint8_t) mAssignedPackageId, (uint8_t) packageId);
            for (size_t i = 0; i < 256; i++) {
                if (mLookupTable[i] != 0) {
                    ALOGV("e[0x%02x] -> 0x%02x", (uint8_t) i, mLookupTable[i]);
                }
            }
            return UNKNOWN_ERROR;
        }

        *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24);
        return NO_ERROR;
    }

    status_t DynamicRefTable::lookupResourceValue(Res_value *value) const {
        uint8_t resolvedType = Res_value::TYPE_REFERENCE;
        switch (value->dataType) {
            case Res_value::TYPE_ATTRIBUTE:
                resolvedType = Res_value::TYPE_ATTRIBUTE;
                // fallthrough
            case Res_value::TYPE_REFERENCE:
                if (!mAppAsLib) {
                    return NO_ERROR;
                }

                // If the package is loaded as shared library, the resource reference
                // also need to be fixed.
                break;
            case Res_value::TYPE_DYNAMIC_ATTRIBUTE:
                resolvedType = Res_value::TYPE_ATTRIBUTE;
                // fallthrough
            case Res_value::TYPE_DYNAMIC_REFERENCE:
                break;
            default:
                return NO_ERROR;
        }

        status_t err = lookupResourceId(&value->data);
        if (err != NO_ERROR) {
            return err;
        }

        value->dataType = resolvedType;
        return NO_ERROR;
    }

    struct IdmapTypeMap {
        ssize_t overlayTypeId;
        size_t entryOffset;
        Vector<uint32_t> entryMap;
    };

    status_t ResTable::createIdmap(const ResTable &overlay,
                                   uint32_t targetCrc, uint32_t overlayCrc,
                                   const char *targetPath, const char *overlayPath,
                                   void **outData, size_t *outSize) const {
        // see README for details on the format of map
        if (mPackageGroups.size() == 0) {
            ALOGW("idmap: target package has no package groups, cannot create idmap\n");
            return UNKNOWN_ERROR;
        }

        if (mPackageGroups[0]->packages.size() == 0) {
            ALOGW("idmap: target package has no packages in its first package group, "
                          "cannot create idmap\n");
            return UNKNOWN_ERROR;
        }

        KeyedVector<uint8_t, IdmapTypeMap> map;

        // overlaid packages are assumed to contain only one package group
        const PackageGroup *pg = mPackageGroups[0];

        // starting size is header
        *outSize = ResTable::IDMAP_HEADER_SIZE_BYTES;

        // target package id and number of types in map
        *outSize += 2 * sizeof(uint16_t);

        // overlay packages are assumed to contain only one package group
        const ResTable_package *overlayPackageStruct = overlay.mPackageGroups[0]->packages[0]->package;
        char16_t tmpName[
                sizeof(overlayPackageStruct->name) / sizeof(overlayPackageStruct->name[0])];
        strcpy16_dtoh(tmpName, overlayPackageStruct->name,
                      sizeof(overlayPackageStruct->name) / sizeof(overlayPackageStruct->name[0]));
        const String16 overlayPackage(tmpName);

        for (size_t typeIndex = 0; typeIndex < pg->types.size(); ++typeIndex) {
            const TypeList &typeList = pg->types[typeIndex];
            if (typeList.isEmpty()) {
                continue;
            }

            const Type *typeConfigs = typeList[0];

            IdmapTypeMap typeMap;
            typeMap.overlayTypeId = -1;
            typeMap.entryOffset = 0;

            for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
                uint32_t resID = Res_MAKEID(pg->id - 1, typeIndex, entryIndex);
                resource_name resName;
                if (!this->getResourceName(resID, false, &resName)) {
                    if (typeMap.entryMap.isEmpty()) {
                        typeMap.entryOffset++;
                    }
                    continue;
                }

                const String16 overlayType(resName.type, resName.typeLen);
                const String16 overlayName(resName.name, resName.nameLen);
                uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
                                                                  overlayName.size(),
                                                                  overlayType.string(),
                                                                  overlayType.size(),
                                                                  overlayPackage.string(),
                                                                  overlayPackage.size());
                if (overlayResID == 0) {
                    if (typeMap.entryMap.isEmpty()) {
                        typeMap.entryOffset++;
                    }
                    continue;
                }

                if (typeMap.overlayTypeId == -1) {
                    typeMap.overlayTypeId = Res_GETTYPE(overlayResID) + 1;
                }

                if (Res_GETTYPE(overlayResID) + 1 != static_cast<size_t>(typeMap.overlayTypeId)) {
                    ALOGE("idmap: can't mix type ids in entry map. Resource 0x%08x maps to 0x%08x"
                                  " but entries should map to resources of type %02zx",
                          resID, overlayResID, typeMap.overlayTypeId);
                    return BAD_TYPE;
                }

                if (typeMap.entryOffset + typeMap.entryMap.size() < entryIndex) {
                    // pad with 0xffffffff's (indicating non-existing entries) before adding this entry
                    size_t index = typeMap.entryMap.size();
                    size_t numItems = entryIndex - (typeMap.entryOffset + index);
                    if (typeMap.entryMap.insertAt(0xffffffff, index, numItems) < 0) {
                        return NO_MEMORY;
                    }
                }
                typeMap.entryMap.add(Res_GETENTRY(overlayResID));
            }

            if (!typeMap.entryMap.isEmpty()) {
                if (map.add(static_cast<uint8_t>(typeIndex), typeMap) < 0) {
                    return NO_MEMORY;
                }
                *outSize += (4 * sizeof(uint16_t)) + (typeMap.entryMap.size() * sizeof(uint32_t));
            }
        }

        if (map.isEmpty()) {
            ALOGW("idmap: no resources in overlay package present in base package");
            return UNKNOWN_ERROR;
        }

        if ((*outData = malloc(*outSize)) == NULL) {
            return NO_MEMORY;
        }

        uint32_t *data = (uint32_t *) *outData;
        *data++ = htodl(IDMAP_MAGIC);
        *data++ = htodl(IDMAP_CURRENT_VERSION);
        *data++ = htodl(targetCrc);
        *data++ = htodl(overlayCrc);
        const char *paths[] = {targetPath, overlayPath};
        for (int j = 0; j < 2; ++j) {
            char *p = (char *) data;
            const char *path = paths[j];
            const size_t I = strlen(path);
            if (I > 255) {
                ALOGV("path exceeds expected 255 characters: %s\n", path);
                return UNKNOWN_ERROR;
            }
            for (size_t i = 0; i < 256; ++i) {
                *p++ = i < I ? path[i] : '\0';
            }
            data += 256 / sizeof(uint32_t);
        }
        const size_t mapSize = map.size();
        uint16_t *typeData = reinterpret_cast<uint16_t *>(data);
        *typeData++ = htods(pg->id);
        *typeData++ = htods(mapSize);
        for (size_t i = 0; i < mapSize; ++i) {
            uint8_t targetTypeId = map.keyAt(i);
            const IdmapTypeMap &typeMap = map[i];
            *typeData++ = htods(targetTypeId + 1);
            *typeData++ = htods(typeMap.overlayTypeId);
            *typeData++ = htods(typeMap.entryMap.size());
            *typeData++ = htods(typeMap.entryOffset);

            const size_t entryCount = typeMap.entryMap.size();
            uint32_t *entries = reinterpret_cast<uint32_t *>(typeData);
            for (size_t j = 0; j < entryCount; j++) {
                entries[j] = htodl(typeMap.entryMap[j]);
            }
            typeData += entryCount * 2;
        }

        return NO_ERROR;
    }

    bool ResTable::getIdmapInfo(const void *idmap, size_t sizeBytes,
                                uint32_t *pVersion,
                                uint32_t *pTargetCrc, uint32_t *pOverlayCrc,
                                String8 *pTargetPath, String8 *pOverlayPath) {
        const uint32_t *map = (const uint32_t *) idmap;
        if (!assertIdmapHeader(map, sizeBytes)) {
            return false;
        }
        if (pVersion) {
            *pVersion = dtohl(map[1]);
        }
        if (pTargetCrc) {
            *pTargetCrc = dtohl(map[2]);
        }
        if (pOverlayCrc) {
            *pOverlayCrc = dtohl(map[3]);
        }
        if (pTargetPath) {
            pTargetPath->setTo(reinterpret_cast<const char *>(map + 4));
        }
        if (pOverlayPath) {
            pOverlayPath->setTo(reinterpret_cast<const char *>(map + 4 + 256 / sizeof(uint32_t)));
        }
        return true;
    }


#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())

#define CHAR16_ARRAY_EQ(constant, var, len) \
        (((len) == (sizeof(constant)/sizeof((constant)[0]))) && (0 == memcmp((var), (constant), (len))))

    static void print_complex(uint32_t complex, bool isFraction) {
        const float MANTISSA_MULT =
                1.0f / (1 << Res_value::COMPLEX_MANTISSA_SHIFT);
        const float RADIX_MULTS[] = {
                1.0f * MANTISSA_MULT, 1.0f / (1 << 7) * MANTISSA_MULT,
                1.0f / (1 << 15) * MANTISSA_MULT, 1.0f / (1 << 23) * MANTISSA_MULT
        };

        float value = (complex & (Res_value::COMPLEX_MANTISSA_MASK
                << Res_value::COMPLEX_MANTISSA_SHIFT))
                      * RADIX_MULTS[(complex >> Res_value::COMPLEX_RADIX_SHIFT)
                                    & Res_value::COMPLEX_RADIX_MASK];
        printf("%f", value);

        if (!isFraction) {
            switch ((complex >> Res_value::COMPLEX_UNIT_SHIFT) & Res_value::COMPLEX_UNIT_MASK) {
                case Res_value::COMPLEX_UNIT_PX:
                    printf("px");
                    break;
                case Res_value::COMPLEX_UNIT_DIP:
                    printf("dp");
                    break;
                case Res_value::COMPLEX_UNIT_SP:
                    printf("sp");
                    break;
                case Res_value::COMPLEX_UNIT_PT:
                    printf("pt");
                    break;
                case Res_value::COMPLEX_UNIT_IN:
                    printf("in");
                    break;
                case Res_value::COMPLEX_UNIT_MM:
                    printf("mm");
                    break;
                default:
                    printf(" (unknown unit)");
                    break;
            }
        } else {
            switch ((complex >> Res_value::COMPLEX_UNIT_SHIFT) & Res_value::COMPLEX_UNIT_MASK) {
                case Res_value::COMPLEX_UNIT_FRACTION:
                    printf("%%");
                    break;
                case Res_value::COMPLEX_UNIT_FRACTION_PARENT:
                    printf("%%p");
                    break;
                default:
                    printf(" (unknown unit)");
                    break;
            }
        }
    }

// Normalize a string for output
    String8 ResTable::normalizeForOutput(const char *input) {
        String8 ret;
        char buff[2];
        buff[1] = '\0';

        while (*input != '\0') {
            switch (*input) {
                // All interesting characters are in the ASCII zone, so we are making our own lives
                // easier by scanning the string one byte at a time.
                case '\\':
                    ret += "\\\\";
                    break;
                case '\n':
                    ret += "\\n";
                    break;
                case '"':
                    ret += "\\\"";
                    break;
                default:
                    buff[0] = *input;
                    ret += buff;
                    break;
            }

            input++;
        }

        return ret;
    }

    void ResTable::print_value(const Package *pkg, const Res_value &value) const {
        if (value.dataType == Res_value::TYPE_NULL) {
            if (value.data == Res_value::DATA_NULL_UNDEFINED) {
                printf("(null)\n");
            } else if (value.data == Res_value::DATA_NULL_EMPTY) {
                printf("(null empty)\n");
            } else {
                // This should never happen.
                printf("(null) 0x%08x\n", value.data);
            }
        } else if (value.dataType == Res_value::TYPE_REFERENCE) {
            printf("(reference) 0x%08x\n", value.data);
        } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) {
            printf("(dynamic reference) 0x%08x\n", value.data);
        } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
            printf("(attribute) 0x%08x\n", value.data);
        } else if (value.dataType == Res_value::TYPE_DYNAMIC_ATTRIBUTE) {
            printf("(dynamic attribute) 0x%08x\n", value.data);
        } else if (value.dataType == Res_value::TYPE_STRING) {
            size_t len;
            const char *str8 = pkg->header->values.string8At(
                    value.data, &len);
            if (str8 != NULL) {
                printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
            } else {
                const char16_t *str16 = pkg->header->values.stringAt(
                        value.data, &len);
                if (str16 != NULL) {
                    printf("(string16) \"%s\"\n",
                           normalizeForOutput(String8(str16, len).string()).string());
                } else {
                    printf("(string) null\n");
                }
            }
        } else if (value.dataType == Res_value::TYPE_FLOAT) {
            printf("(float) %g\n", *(const float *) &value.data);
        } else if (value.dataType == Res_value::TYPE_DIMENSION) {
            printf("(dimension) ");
            print_complex(value.data, false);
            printf("\n");
        } else if (value.dataType == Res_value::TYPE_FRACTION) {
            printf("(fraction) ");
            print_complex(value.data, true);
            printf("\n");
        } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
                   || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
            printf("(color) #%08x\n", value.data);
        } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
            printf("(boolean) %s\n", value.data ? "true" : "false");
        } else if (value.dataType >= Res_value::TYPE_FIRST_INT
                   || value.dataType <= Res_value::TYPE_LAST_INT) {
            printf("(int) 0x%08x or %d\n", value.data, value.data);
        } else {
            printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
                   (int) value.dataType, (int) value.data,
                   (int) value.size, (int) value.res0);
        }
    }

    void ResTable::print(bool inclValues) const {
        if (mError != 0) {
            printf("mError=0x%x (%s)\n", mError, strerror(mError));
        }
        size_t pgCount = mPackageGroups.size();
        printf("Package Groups (%d)\n", (int) pgCount);
        for (size_t pgIndex = 0; pgIndex < pgCount; pgIndex++) {
            const PackageGroup *pg = mPackageGroups[pgIndex];
            printf("Package Group %d id=0x%02x packageCount=%d name=%s\n",
                   (int) pgIndex, pg->id, (int) pg->packages.size(),
                   String8(pg->name).string());

            const KeyedVector<String16, uint8_t> &refEntries = pg->dynamicRefTable.entries();
            const size_t refEntryCount = refEntries.size();
            if (refEntryCount > 0) {
                printf("  DynamicRefTable entryCount=%d:\n", (int) refEntryCount);
                for (size_t refIndex = 0; refIndex < refEntryCount; refIndex++) {
                    printf("    0x%02x -> %s\n",
                           refEntries.valueAt(refIndex),
                           String8(refEntries.keyAt(refIndex)).string());
                }
                printf("\n");
            }

            int packageId = pg->id;
            size_t pkgCount = pg->packages.size();
            for (size_t pkgIndex = 0; pkgIndex < pkgCount; pkgIndex++) {
                const Package *pkg = pg->packages[pkgIndex];
                // Use a package's real ID, since the ID may have been assigned
                // if this package is a shared library.
                packageId = pkg->package->id;
                char16_t tmpName[sizeof(pkg->package->name) / sizeof(pkg->package->name[0])];
                strcpy16_dtoh(tmpName, pkg->package->name,
                              sizeof(pkg->package->name) / sizeof(pkg->package->name[0]));
                printf("  Package %d id=0x%02x name=%s\n", (int) pkgIndex,
                       pkg->package->id, String8(tmpName).string());
            }

            for (size_t typeIndex = 0; typeIndex < pg->types.size(); typeIndex++) {
                const TypeList &typeList = pg->types[typeIndex];
                if (typeList.isEmpty()) {
                    continue;
                }
                const Type *typeConfigs = typeList[0];
                const size_t NTC = typeConfigs->configs.size();
                printf("    type %d configCount=%d entryCount=%d\n",
                       (int) typeIndex, (int) NTC, (int) typeConfigs->entryCount);
                if (typeConfigs->typeSpecFlags != NULL) {
                    for (size_t entryIndex = 0;
                         entryIndex < typeConfigs->entryCount; entryIndex++) {
                        uint32_t resID = (0xff000000 & ((packageId) << 24))
                                         | (0x00ff0000 & ((typeIndex + 1) << 16))
                                         | (0x0000ffff & (entryIndex));
                        // Since we are creating resID without actually
                        // iterating over them, we have no idea which is a
                        // dynamic reference. We must check.
                        if (packageId == 0) {
                            pg->dynamicRefTable.lookupResourceId(&resID);
                        }

                        resource_name resName;
                        if (this->getResourceName(resID, true, &resName)) {
                            String8 type8;
                            String8 name8;
                            if (resName.type8 != NULL) {
                                type8 = String8(resName.type8, resName.typeLen);
                            } else {
                                type8 = String8(resName.type, resName.typeLen);
                            }
                            if (resName.name8 != NULL) {
                                name8 = String8(resName.name8, resName.nameLen);
                            } else {
                                name8 = String8(resName.name, resName.nameLen);
                            }
                            printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
                                   resID,
                                   CHAR16_TO_CSTR(resName.package, resName.packageLen),
                                   type8.string(), name8.string(),
                                   dtohl(typeConfigs->typeSpecFlags[entryIndex]));
                        } else {
                            printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
                        }
                    }
                }
                for (size_t configIndex = 0; configIndex < NTC; configIndex++) {
                    const ResTable_type *type = typeConfigs->configs[configIndex];
                    if ((((uint64_t) type) & 0x3) != 0) {
                        printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
                        continue;
                    }

                    // Always copy the config, as fields get added and we need to
                    // set the defaults.
                    ResTable_config thisConfig;
                    thisConfig.copyFromDtoH(type->config);

                    String8 configStr = thisConfig.toString();
                    printf("      config %s:\n", configStr.size() > 0
                                                 ? configStr.string() : "(default)");
                    size_t entryCount = dtohl(type->entryCount);
                    uint32_t entriesStart = dtohl(type->entriesStart);
                    if ((entriesStart & 0x3) != 0) {
                        printf("      NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n",
                               entriesStart);
                        continue;
                    }
                    uint32_t typeSize = dtohl(type->header.size);
                    if ((typeSize & 0x3) != 0) {
                        printf("      NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize);
                        continue;
                    }
                    for (size_t entryIndex = 0; entryIndex < entryCount; entryIndex++) {
                        const uint32_t *const eindex = (const uint32_t *)
                                (((const uint8_t *) type) + dtohs(type->header.headerSize));

                        uint32_t thisOffset = dtohl(eindex[entryIndex]);
                        if (thisOffset == ResTable_type::NO_ENTRY) {
                            continue;
                        }

                        uint32_t resID = (0xff000000 & ((packageId) << 24))
                                         | (0x00ff0000 & ((typeIndex + 1) << 16))
                                         | (0x0000ffff & (entryIndex));
                        if (packageId == 0) {
                            pg->dynamicRefTable.lookupResourceId(&resID);
                        }
                        resource_name resName;
                        if (this->getResourceName(resID, true, &resName)) {
                            String8 type8;
                            String8 name8;
                            if (resName.type8 != NULL) {
                                type8 = String8(resName.type8, resName.typeLen);
                            } else {
                                type8 = String8(resName.type, resName.typeLen);
                            }
                            if (resName.name8 != NULL) {
                                name8 = String8(resName.name8, resName.nameLen);
                            } else {
                                name8 = String8(resName.name, resName.nameLen);
                            }
                            printf("        resource 0x%08x %s:%s/%s: ", resID,
                                   CHAR16_TO_CSTR(resName.package, resName.packageLen),
                                   type8.string(), name8.string());
                        } else {
                            printf("        INVALID RESOURCE 0x%08x: ", resID);
                        }
                        if ((thisOffset & 0x3) != 0) {
                            printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset);
                            continue;
                        }
                        if ((thisOffset + sizeof(ResTable_entry)) > typeSize) {
                            printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n",
                                   entriesStart, thisOffset, typeSize);
                            continue;
                        }

                        const ResTable_entry *ent = (const ResTable_entry *)
                                (((const uint8_t *) type) + entriesStart + thisOffset);
                        if (((entriesStart + thisOffset) & 0x3) != 0) {
                            printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n",
                                   (entriesStart + thisOffset));
                            continue;
                        }

                        uintptr_t esize = dtohs(ent->size);
                        if ((esize & 0x3) != 0) {
                            printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *) esize);
                            continue;
                        }
                        if ((thisOffset + esize) > typeSize) {
                            printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n",
                                   entriesStart, thisOffset, (void *) esize, typeSize);
                            continue;
                        }

                        const Res_value *valuePtr = NULL;
                        const ResTable_map_entry *bagPtr = NULL;
                        Res_value value;
                        if ((dtohs(ent->flags) & ResTable_entry::FLAG_COMPLEX) != 0) {
                            printf("<bag>");
                            bagPtr = (const ResTable_map_entry *) ent;
                        } else {
                            valuePtr = (const Res_value *)
                                    (((const uint8_t *) ent) + esize);
                            value.copyFrom_dtoh(*valuePtr);
                            printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
                                   (int) value.dataType, (int) value.data,
                                   (int) value.size, (int) value.res0);
                        }

                        if ((dtohs(ent->flags) & ResTable_entry::FLAG_PUBLIC) != 0) {
                            printf(" (PUBLIC)");
                        }
                        printf("\n");

                        if (inclValues) {
                            if (valuePtr != NULL) {
                                printf("          ");
                                print_value(typeConfigs->package, value);
                            } else if (bagPtr != NULL) {
                                const int N = dtohl(bagPtr->count);
                                const uint8_t *baseMapPtr = (const uint8_t *) ent;
                                size_t mapOffset = esize;
                                const ResTable_map *mapPtr = (ResTable_map *) (baseMapPtr +
                                                                               mapOffset);
                                const uint32_t parent = dtohl(bagPtr->parent.ident);
                                uint32_t resolvedParent = parent;
                                if (Res_GETPACKAGE(resolvedParent) + 1 == 0) {
                                    status_t err = pg->dynamicRefTable.lookupResourceId(
                                            &resolvedParent);
                                    if (err != NO_ERROR) {
                                        resolvedParent = 0;
                                    }
                                }
                                printf("          Parent=0x%08x(Resolved=0x%08x), Count=%d\n",
                                       parent, resolvedParent, N);
                                for (int i = 0;
                                     i < N && mapOffset < (typeSize - sizeof(ResTable_map)); i++) {
                                    printf("          #%i (Key=0x%08x): ",
                                           i, dtohl(mapPtr->name.ident));
                                    value.copyFrom_dtoh(mapPtr->value);
                                    print_value(typeConfigs->package, value);
                                    const size_t size = dtohs(mapPtr->value.size);
                                    mapOffset += size + sizeof(*mapPtr) - sizeof(mapPtr->value);
                                    mapPtr = (ResTable_map *) (baseMapPtr + mapOffset);
                                }
                            }
                        }
                    }
                }
            }
        }
    }

}   // namespace android
